What are PayNyms / BIP-47 reusable payment codes and how do they work? A payment code for hierarchical deterministic wallets, which can be publicly advertised and associated with a real-life identity without creating the loss of security or privacy inherent to P2PKH address reuse. They are supported natively by Samourai Wallet.

More about BIP-47: https://github.com/bitcoin/bips/blob/master/bip-0047.mediawiki
More about stealth addresses: https://bitcoinmagazine.com/articles/stealth-transactions-and-reusable-payment-codes-how-bitcoin-addresses-can-be-hidden-in-plain-sight-1467743772/
More about PayNyms:

This question is from the January monthly subscriber session, which took place on January 26th 2019. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop

Worse than Useless: Financial Surveillance – https://youtu.be/n4F-h4xuXMk
Money as a System-of-Control – https://youtu.be/FyK4P7ZdOK8
The Stories We Tell About Money – https://youtu.be/ONvg9SbauMg
Bitcoin: Privacy, Identity, Surveillance and Money – https://youtu.be/Vcvl5piGlYg
ADISummit: Self-Sovereign Identity Panel – https://youtu.be/DZbyiJqKT8c
How is fungibility tied to privacy? – https://youtu.be/VuI-8EwqIS8
Public keys versus addresses – https://youtu.be/8es3qQWkEiU
Re-using addresses – https://youtu.be/4A3urPFkx8g
Airdrop coins and privacy implications – https://youtu.be/JHRnqJJ0rhc
Wallet design and mass adoption – https://youtu.be/WbZX6BDZJHc
How do I choose a wallet? – https://youtu.be/tN6b62sEpsY
Using paper wallets – https://youtu.be/cKehFazo8Pw
Exchanges, identity, and surveillance – https://youtu.be/TVFy8xXfxAA
The price of losing privacy – https://youtu.be/2G8IgiLbT_4
Layered scaling and privacy – https://youtu.be/4w-bjUhpf_Q
Coin selection and privacy – https://youtu.be/3Ck683CQGAQ
Lightning and onion routing – https://youtu.be/D-nKuInDq6g
SegWit and fork research – https://youtu.be/OorLoi01KEE
MimbleWimble and Schnorr signatures – https://youtu.be/qloq75ekxv0
Mixing services – https://youtu.be/rKoMvOH4zoY
Borderless money – https://youtu.be/EZh1-ZqffOw
Will governments let privacy coins exist? – https://youtu.be/30sjEW70rLE
Differences between Grin and Beam? – https://youtu.be/SojKwudx1TI

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8

[NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8

MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042

[NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388

Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/

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