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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b208ae0e809d78f57e63792589d45841638ad21fa49829e8a62e19719a79b56. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c80d804d-5e39-4316-892f-0bff3eec35ff.json and https://artists.proofprofile.net/proofs/artist/c80d804d-5e39-4316-892f-0bff3eec35ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'd Agree With You But Then We'd Both Be Wrong (instrumentals)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6ff83bb06598f96db0cbcd79d86e71c32f73118f70b772d6286dbf38e7701b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/TCAIF2468059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cf191bb8c1a7af8a84c4365c1403487a1c055673e989f5ad5401eef07c124f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIT2452282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e38aa5eab22f8f7cc0bfed8711d2837d689197eb9e85d896a9bbafb7313f855. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIR2441080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb851744528c5a4fb7b25b0432a5544ef1caebfa4391424beb88baf92ecc7bf2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIP2439070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ce70cc543d34a3bfda99e8d0f36aaf5d3250647430d1c80a2a924713fac4e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIS2452377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55196b456c975ad8bf95ea5b89b517a35880b2125c099bec3f08c5977d5ab19. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIS2452384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b127ccb3862148da5fcd10490b1694906204e7919ca57f4308add3adf9934cc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAIS2456539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95af6390192bf950e5e8b06dca3f7cbb925d21a78cdccca4c210908d2d07dc9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHO2391165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea3df4ffeddc401111fffc8e37d2178122673d6b42e5d8e2c5f9e789c1a694a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIS2490726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce625345de3d98cf01809b6fed24ff7af9675fe92ced81f48366c48bf0ec2dc1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAIS2456612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd98e0607dfbbceab686cfa68e67721a0259b20bb0e7ac45ec791b0e43b6cb4b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAIL2416502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed721bab74e97367903ed0c231df8e258d981304844abc30b4e7cf7b850f1c7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIT2456668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7bc01fd94a69b248743b077c97cd0194d1170b7e0d0db3abb53d8ef167b8ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIS2456732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a29d8d7fa524093858360af778d5f137c4ac74e2ebc2b57702c90b7d27d1a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAIT2456743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b24fd4e5809e573beb5e7eab2ffbbb80f5547ebc1ec7353b5cb4367bb977de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAIT2456754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4818f770bc8f6460203f247df40c8218e641337ab2ffa5ae1fa883d93fbc57e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIT2456784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058bbf939988e94b10f231a992ec05267f8dc152ae5f2709a1c8d562339235c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAIT2456945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd98e0607dfbbceab686cfa68e67721a0259b20bb0e7ac45ec791b0e43b6cb4b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAIL2416502.