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 0xb69401e3d4dc4982ea0a5f83c1d3d13f079fc110705af834c9c36afa7d8219e8. 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/0871ffbb-bb60-4a13-936b-d331c615f793.json and https://artists.proofprofile.net/proofs/artist/0871ffbb-bb60-4a13-936b-d331c615f793.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ddcd461746105e5d14750ea5c27df9e1d6db39c33e6dfc6907bd3daae00af1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKFA41900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d7b2932ed2fd8339e207e5e6c9f6a485fcc109269d0389db37efa53ecbca48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKFA41900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246a25d9b8ff02e7fda10c96faefca847d3250de78cf6305ede87770a401e8a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKFA41900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385c4be3d397406d27d3a92aed95f860776e164b772bb8d957841d96dd473d05. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKFA41900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b23c1f8628f034090e44a72baa0228fc38c94c1cce0b1526676bc6542fec94f. 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/UKFA41900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aed8dc7fd14adee6b62d96d7f32ac10de80dcd1356db208eff592d3813c81ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKFA41900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf3a32e67a22b9176a746351a0b46db690ac6017e89507d98ce0bd892556a65. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKFA41900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe43782b131868d4c124138ff0bd5fb8cdaad512b366462acceaa92b62480688. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKFA41900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913e20a88372d73e9af5a3862b1ab24ba1faf40e69bf687f441599c46762916a. 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/UKFA41900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769e083294a373511e85e936b21ec7da88b49f32c24714b75d5c30c3f52d8ab8. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UKFA41900007.
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 0x800d9fc4fabec80e7fbe50907f236febcde8648b8358f24de0daeebf6505cf4e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKFA41900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d4a6177dc1a900c24633af3e94b57045520af48cb2b23a683d73b0dcd0f965. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBC5Q1000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198a3a46f8895c62c39c601d5c7719b960c9b0aec3675cafaaf0e56f7122e707. 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/GBC5Q1000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a35c2f8fb30153b2e43d136965caf9f0a998682f9b5994d94709e43b2a8631. 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/GBC5Q1000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec99c8c5a326ca8276d8ffbe80c33380fc09b0cb3c47cc4f82e06ecf0fe2e1. 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/GBC5Q1000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a761281e11e878018787155078f551e39a962139afcf311bf4b4c82873dd8ad. 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/GBC5Q1000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88bf8e330ce799a4cdc5dff844fd73adff2476cfb82eef0267e65eddee50d4d. 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/GBC5Q1000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f31af7cdc99994d17f03b3f17605124f3538c3780e5c66980a6de5ad36472. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBC5Q1000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4a46c0507379630f45c8316aab43f2dfc0a2946f1094033278c233dd8dccf6. 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/GBC5Q1000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8f3e80d1bce53a37638192de320c3232f0180d7996b86af81d2a0056e44b7a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBC5Q1000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aba71730cbd35315cc48f19c52c84fc9bd18bd7834c7c60860f187a896b088. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBC5Q1000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63fc3835b3c60ba34dec71a266f613ea96fd019e56c21ea81949ef6c73eaed4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBC5Q1000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9a95b0c6009cd110614a52e7b61d3252dac3a3fcb97b0b290ddfc2b6b1cd41. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/GBC5Q1000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4dc73170ad9eab279405baaa70036262d82ff9a2e62b6ee8cd43ce9b9e7297. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBC5Q1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd351da7389ab96481a7e10a979d11b20e187ee1e25a0bb4c9a72e63decf02e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBC5Q1000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c255acef711e1e26d3926334561f7447239b72ab6fd84b2350201fc19fd0cc. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBC5Q1000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4637b29c0b41dfd4147da80fc4335ac9d19c2f785da9a80daa3204de20eea4f2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKFA41600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c45aff232c7c8850cecfaac4c54e01b48490a9899a2c5449ccbf9f5bb8458ee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBC5Q1000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ae82af24b0c57036a5c5ee5112effeb47cccb1b1f9f75445cd0db4d221c310. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBC5Q1000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97a8dd77461bb2fb8b6d9a504abe43ac36e8cddc1eacb7e286fa4e19c94209e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBC5Q1000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f8af0fb1e31cafad079cc8636c0d70482372be3968330395655cdc7d69889c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBC5Q1000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce6c5cd258f025cc85300f75d7d2eeeda252c9b95823ee36870087232f12b15. 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/GBSZM1200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e80c946229a97fc9a4ee54af075b5163c09311defea453e494c5d83ae15659. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBSZM1200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de5dc35a45b5b95315f888fa57eabb29937c996ecf058ff129f2253fd5b284. 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/GBCJY1100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de5dc35a45b5b95315f888fa57eabb29937c996ecf058ff129f2253fd5b284. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCJY1100166.
The Lesson - Body & Soul Vs Fourward Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23896aa35c0654312e939a30c5c7f5fa98acf536aedc96fb43397e576d271c11. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBCJY1200071.