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realcoinhub.bsky.social
Read the first two 2009 cent designs by following the wood: cabin walls in Kentucky, then rails and a reader in Indiana. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinCollecting
November 15, 2026 at 2:04 PM
realcoinhub.bsky.social
A regular 1982 Philadelphia dime has a P above its date. Compare a certified No-P example, confirm the date and seek authentication for a suspected find. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinVarieties
November 14, 2026 at 9:02 PM
talosnumismatics.bsky.social
**Coin of the Day**
Canada 2006 Silver 50 Cents Butterfly Silvery Blue Hologram Proof PR69 DCAM PCGS - w/Cert Low Mintage

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#coins #coincollecting #canadacoins #silvercoins #gradedcoins #certifiedcoins #proofcoins #butterfly #PCGS #pcgscoin
November 10, 2026 at 4:55 PM
realcoinhub.bsky.social
Follow the raised strip and broken edge on this 1942 lamination error. Compare the intact wheat reverse, and leave a loose flake alone. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinErrors
November 12, 2026 at 7:10 PM
realcoinhub.bsky.social
On a 1979-P Susan B. Anthony dollar, compare the date-to-rim gap and thicker rim, then check the P mintmark. A die-design variety, not an off-center strike. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinVarieties
November 14, 2026 at 7:04 PM
realcoinhub.bsky.social
A silver-gray 1943 penny can stick to a magnet. Watch the steel cents lift, then compare them with bronze wheat cents. A nonmagnetic 1943 cent needs expert authentication. From CoinHub’s January 2020 archive. Reference photo: PCGS CoinFacts / TrueView. #CoinCollecting #SteelPenny
November 14, 2026 at 7:46 PM
realcoinhub.bsky.social
A certified 1944 steel cent beside a normal 1944 cent. Color alone cannot authenticate one: check the date, weight and magnetic response, then seek expert authentication. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinErrors
November 12, 2026 at 9:04 PM
realcoinhub.bsky.social
Compare the high seven and weaker LIBERTY on the 1970-S small date with the large date. Use both clues. Photos: PCGS CoinFacts / TrueView. Book photo: NGC. #CoinHub #CoinErrors
November 11, 2026 at 9:04 PM
goldirablueprint.bsky.social
I get asked about the green sticker on graded coins a lot. It means CAC reviewed a PCGS or NGC grade and agreed it was fair. Whether it adds value depends on the coin. The link is in the reply below. #GoldIRA #GoldIRABlueprint
November 15, 2026 at 1:12 PM
realcoinhub.bsky.social
Flip a 1983 cent and compare ONE CENT, UNITED and the motto with a normal reverse. A doubled die differs from a coin struck twice. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinErrors
November 11, 2026 at 7:04 PM
realcoinhub.bsky.social
A tight AM gap is one clue. Compare the normal reverse, confirm 1992 and seek expert attribution before calling a find genuine. Photos: PCGS CoinFacts / TrueView. Book image: NGC. #CoinHub #CoinErrors
November 10, 2026 at 7:04 PM
realcoinhub.bsky.social
Check the date, LIBERTY and IN GOD WE TRUST against the normal cent. Doubling on the die differs from striking a coin twice. Photos: PCGS CoinFacts / TrueView. Book image: NGC. #CoinHub #CoinErrors
November 10, 2026 at 9:04 PM
realcoinhub.bsky.social
Look just above the cheese on a 2004-D Wisconsin quarter. Compare Extra Leaf Low, Extra Leaf High and a normal coin, then check the D mintmark. These clues help with screening, not authentication. Photos: PCGS CoinFacts / TrueView. #CoinHub #CoinErrors
November 8, 2026 at 9:04 PM
talosnumismatics.bsky.social
**Coin of the Day**
2015 S Dwight D Eisenhower Presidential Dollar Proof PR70 DCAM PCGS First Strike

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#coins #coincollecting #PCGS #pcgscoins #pcgscoin #Eisenhower #gradedcoins #certifiedcoins #proofcoins
November 6, 2026 at 4:59 PM
realcoinhub.bsky.social
ESTO PERPETUA means “May it be forever,” Idaho’s state motto. Find the peregrine falcon, Idaho’s outline and two different dates: 1890 statehood, 2007 issue. Photo: PCGS CoinFacts / TrueView. #CoinHub #CoinCollecting
November 9, 2026 at 12:03 AM
realcoinhub.bsky.social
The spike on Utah’s quarter recalls the joining of two railroads at Promontory in 1869. Read CROSSROADS OF THE WEST, then compare 1896 statehood with the 2007 issue date. Photo: PCGS CoinFacts / TrueView. #CoinHub #CoinCollecting
November 8, 2026 at 2:04 PM
fonv431.bsky.social
ebay.io/m/An5kXC

#Titanic #coal #bup #nub #shipwreck #relic #authorization #recovery
1912 RMS Titanic Coal Nub Recovered Shipwreck Relic PCGS Genuine authenticated | eBay
The product described is a piece of coal nub recovered from the shipwreck of the RMS Titanic, which sank in 1912. This relic is verified as genuine by PCGS, making it a valuable collector's item for fans of the White Star and Titanic cruise ships. The inclusion of the clear photo further enhances the authenticity and adds a visual element to the collectible nature of this piece of maritime history.
ebay.io
November 7, 2026 at 1:42 AM
eprint.ing.bot
Pseudorandom Correlation Generators for Matrix Triples (Maxime Bombar, Geoffroy Couteau, Nikolas Melissaris, Anuja Modi) ia.cr/2026/2298
Abstract. We introduce new pseudorandom correlation generators (PCGs) for matrix triples: shares of triples (A, B, A ⋅ B) where A, B are random matrices over 𝔽^(n × n) for a field 𝔽 and an integer n. Matrix triples are consumed in a wide variety of secure computation protocols that involve matrix arithmetic, which occurs commonly in settings such as privacy-preserving machine-learning and statistics, threshold cryptography, secure linear algebra, and more. Previous PCGs for matrix triples are inefficient: their seed grows at least linearly in the matrix dimension, and their expansion is slow. In this work, we introduce two new PCGs with improved performances: 1. Our first construction, inspired by the recent work of (Gentry and Lee, Crypto 2026) on FHE for matrix arithmetic, relies on the quasi-abelian syndrome decoding (QASD) assumption introduced in (Bombar et al., Crypto 2023), an assumption which has since received a significant amount of attention. Our PCG generates N matrix triples over 𝔽^(n × n) from a seed of size poly(λ, log n, log N) using Θ(n³log (n³N)) field operations per triple, removing the linear dependency on n from the seed compared to previous works. 2. Our second construction is more mathematically involved, and builds upon an elegant and surprising connection with the Weyl-Pauli twisted algebra, a mathematical structure originally studied in (Weyl, Zeitschrift für Physik, 1927) in the context of quantum kinematics. Our PCG relies on a new variant of the QASD assumption over the Weyl-Pauli twisted group algebra and exhibits impressive performances: it has the same seed size as our first construction and generates N matrix triples at a cost only a small constant time larger than the cost of computing N matrix triples in the clear. We complement our results with an in-depth study of our new twisted QASD assumption and demonstrate the benefits of our PCGs in concrete applications such as privacy-preserving machine learning and threshold MAYO. Image showing part 2 of abstract. Image showing part 3 of abstract.
November 9, 2026 at 1:25 AM
realcoinhub.bsky.social
The date is only the first clue on the 1955 doubled-die cent. Compare LIBERTY and the motto with a normal cent, then learn why the doubling began in the die. These are screening clues, not authentication. Coin photos: PCGS CoinFacts / TrueView. #CoinHub #CoinCollecting
November 8, 2026 at 7:04 PM
realcoinhub.bsky.social
A 2009 date does not settle the metal. Circulating cents are mostly zinc; collector proofs used 95% copper. Check the issue, not just the color. Photo: PCGS. Specs: U.S. Mint. #CoinHub #CoinCollecting
November 7, 2026 at 8:10 PM
talosnumismatics.bsky.social
**Coin of the Day**
New Zealand George VI 1941 Penny MS63 BN PCGS GSH

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#coins #coincollecting #PCGS #pcgscoins #pcgscoin #gradedcoins #certifiedcoins #newzealandcoins #newzealandcoin #GeorgeVI
November 4, 2026 at 5:59 PM
talosnumismatics.bsky.social
**Coin of the Day**
Sweden Gustaf VI 1965 U Silver 2 Kronor MS65 PCGS GSH rv Toning

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#coins #coincollecting #PCGS #pcgscoins #pcgscoin #gradedcoins #certifiedcoins #swedishcoins #swedishcoin #sweden #silvercoins
November 5, 2026 at 4:36 PM
nhs-pcgs.bsky.social
We're incredibly proud to have won the Psychiatric Team of the Year: Working-Age Adults at the #RCPsychAwards! 🏆

Thank you very much to the college for the recognition of the hard work the whole PCGS team puts in to support our patients experiencing gambling harm
November 5, 2026 at 5:22 PM
nhs-pcgs.bsky.social
Making and sustaining long-term, positive change for our patients is a key priority at PCGS, and aftercare support is a vital part of that.

We're proud to work with excellent providers across the country to support our patients 🤝
November 5, 2026 at 8:30 AM
digghappens.bsky.social
I love PCGs too 100 because it moves with the times since it's based on the current staff and not just a list of their top reviewed games. So many more great games get highlighted and exposed to people who may of missed out on them when they were big.
November 4, 2026 at 3:03 AM