1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d351ee36c813fba20099098c4d543eaa651a26029526846614482444b44e918. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07025492-dc35-4835-b15e-822779aaa597.json and https://artists.proofprofile.net/proofs/artist/07025492-dc35-4835-b15e-822779aaa597.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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dc5a06faaaf6f06a3d77ec4f9c8160f7bfae2a934e144ef3951d68de3807a5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJX2506660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e51a1e8a7e39df74e42a565bbb17a99b4dc108accccf255f35f59ddaf9b45b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAJW2506739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381db191c5bc1776ec4f8c556847b8724f00f95fcdc54fbf1bcdcb009f180324. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJW2547973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c752cc29c491fac1c942a2a914caa2c669d27789b1a366f4fba574a7157653. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJW2598171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85f0824f1e327d8840d112af9962909fde2ef4b0f88747a3874e60f44b4c15d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJW2598203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f240f43b498424b903ae0e3c73bca33b8bb0f0ab5ac75f1cf45d49bf463d391. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJX2560185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90da550e50afa872d37fc4ba2f2e6a3cd7737bb2e07387892ecd7eeb6b05cffa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJX2560222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54818b116c78c54b293ad3df4a93ae52c69bbe5e6b60d923f356e2ff6278d16. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAJY2579867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab22fc60da3c61fc5dba79707d1217661b9d57970997be37eb24002b10cb0e9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJY2579817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376d4284075f7ce5a79e011c3ce798a2c0350a4f3b6c6137a2e1427b2b8845e4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJY2504669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa78052f5f1dd9532745b8bc86e04c615d6c995be645e556c5d0d9f77088d7d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJY2536751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1263ca6f8cc2ffee75bfa99d02b164d83aa9133b871959076103de40bab35c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAJZ2536764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fc2cad84939de1659a661b9ae788a1c6b76aadb851637a0e524188a537ead7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAJY2584947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc1b659b75a5a7d578a8e332364deb3351e62a838bb99a72dd0add2c70062b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:42:02Z), 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/TCAJZ2513100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62459c85dd5b79d24c76c8ebbe41281c99e953e97aa2ce1ccb1d1fc71e62fb84. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QT65W2503401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139e95c6ab115a83cf22a67e7f592b9dffa772e69912a1cf4213919340384f5c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QT65W2577413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7b87a3cb7c1ce9de9f34f01074bd57829f0abbf4876f62dc3d6ff723eb7cba. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QT65X2528988.