Larry Pierce may refer to: Larry Pierce (figure skater) (1937–1961), American ice dancer Larry S. Pierce (1941–1965), American soldier and Medal of Honor recipient Larry Pierce (singer) (1950–2018
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc832921151ccd014ec2c084ad97e6b3650d7ee65f5ec5eb32a06bd1d55665e3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70bb443e-205f-44bd-b624-fab76dee17ec.json and https://artists.proofprofile.net/proofs/artist/70bb443e-205f-44bd-b624-fab76dee17ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f2b5672353eeac94a43a55df12ecca68690483ebb5da527e2d6bf8ba476675. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbceba27604b3a281fffba6c87240a347349a6683e28d093e3a24e48e6f0223. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce3260591e2e6ac5e594999630fd993ff683c07204c6367ba837ac3456d6ee4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550bfe053defb2971b29c1887caf3c9553ff71d16e7d31a44d27b109a8eb15d2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000610.
Screw Your Brains Out (One Night Stand) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd72b582dde228968508fe50c84ffd100f9acce57061323b21008f876194f633. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e95dcee831ede0a8f6ce61e120917d59139803d33cc821f69da64b5dadbdfc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000641.
Don't Tell Anybody I Screwed You (Can I Buy You A Drink) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826b97be7c4c9a75403027cb46f0aed80a37d8ea167c98679af483b049211cb. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b9ce12e45b3eeba6cb2543275b9c2ba25cbbc090a426c3f7503c661c291c07. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6452941c023c0b6d30e51da250d5a85058d1e11bd93cf29b88a68812cebc3ecf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R30602941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4aaeb3b150e243800fc35fd98e06c0070f6c45e4228fdd900270c107e64420. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH0725931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33ae1c9d1a54757f36c80db5c1c2d2ebd053cdd8f56d96cfafc0184b483a6dc. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ee3b23a1298096ba5407a3410a20b5ffdf9da83d5014106da265f11d8c0725. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990a0c2c12ad6580828f17ef44f213309f4bf61672657772ba942b2c528d336b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM20965614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcead1b23b20ff9bb89d602867511ee8e01a731bddbcbb6bc2fca705b6b54c28d. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKXM2000929.