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 0x8833607d8275bbdf6b0b524a45763a3c103053b855ed5a9dd63124259ad8f3b1. 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/59cccd00-ce35-4c21-889c-9a8bdc2044a5.json and https://artists.proofprofile.net/proofs/artist/59cccd00-ce35-4c21-889c-9a8bdc2044a5.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 0x79019c7a0cfdeca3eba7b864c1a3e963f36693ebba68e1700edbba8dc444c6a7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:47Z), 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/FR2X41834264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606b536b382a1ce725062bba581a4265b26dc8b4fef516d0da0a4cd4e8eb80b3. 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/FRX201840133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc566a5823073337ab064746d66a9fe3680f8c5d170d6b83fd2abf079f50c4b. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/FR10S1977776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe8f2a4cc4ef735ab0e7689aff1e3a4f96a8f54299f8879ed2acee17093f52d. 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/FRX202192449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335d12cbd822315f447c99fa75411f2d51018892c10e2a9edbe974f086af134e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IL7192100384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a715eedba24b85c9aaedd6fcd3b19350523a03c0cda2080a41a967a93e86e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IL7192200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c571d2747fc7fdb811056f76ee074e49840b6df5abd0583628794a35838760. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/FRX282204782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169b87af2c6a87b21e1b13d85a29d0b8b6143d699aa3b946d17d7e8be040a65e. 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/IL7192300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64efa216f531d84fcd077df98821af265f9b80b352b0882c5aa666c46a53589. 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/IL7192300963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7456855319334477c85aa19ea3e82412aef1d5f76e53701e834b7a41412398. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/IL1012301730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb04e87e1cbea03141c1c6eb19901c247ac9ec21c4ee38e97fa2297989e375f. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/IL1012302003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b3991886c639f983591d27928d8411f0664aebd00208c0c8eb30c4ce38a9be. 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/IL1012400537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19639651de4d57880f634cae0ae7584e8176f3e6c5ef7d41cb196227a7142530. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL1012502167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4981a9e4069fe19aadb0d1f2acc3cb5d5d32e5784c3c14f4971e5338acade27d. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:56:46Z), 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/IL1012502168.