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 0x509d2ff3c97608fac88e401ac5615bb6804ff5fd9f1030bfed11b33d60b9194c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2bdf636-337c-4670-a016-8c67db9a000f.json and https://artists.proofprofile.net/proofs/artist/d2bdf636-337c-4670-a016-8c67db9a000f.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 0x9ce6174af6f7c378d38fac4d310e34aa2ddc9cfb26a128679ffba87687df6e76. 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/USJ3V1328666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2482941ad9c57521bb09bf22f5ea6a8107c1ca3acae2b37156146c512ad2c79. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USJ3V1328667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b49da22887833098b8aae5a0e38583d63785f0a71514c5845c20f3fde80909. 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/USJ3V1328671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7ab94290f53f26616cd5e835f63ac8c25445ebc66664a543c8576b837b172a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:25:26Z), 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/USJ3V1328674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883cbdc4dd69a85f8f687ae51fa371c4ade2b762e275373db0a3cb6807cecb41. 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/USJ3V1328676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff60c0e7f52e0b6966da164436b979cc95e4597c7e05374aad12517547f43def. 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/USJ3V1328677.
Transmision En Vivo Desde Torreon, Coah., MX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169b4d95f3ed29658b71518baffd4dc5f31dfac4744eeda420d8dd88c722747. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:01Z), 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/USJ3V2024212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c4f281fe5df48283d239414862af2da51d8cb4e5af62cf93f1cd776a677538. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:24:28Z), 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/USJ3V2024213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a11d2fc22c7888de7013b0fc25acbc75d5251c28ca0a63c1e824fe1d0ecd20. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USJ3V2024214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e15826477fc32d8a3e63bef47455ebc83e8ddccd6de9a4886d050935253bae0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USJ3V2024215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d703d46f34dad07d2c381c9a1986a5118dbea2e8f1b818174dad68834ff5a00. 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/USJ3V2024216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67db91c54ccfa484687473c1e4f104fd04e91a3237252e4387e2b4634c921af5. 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/USJ3V2024217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d86761a10c90bece832831fc7a992e1f45096c82632730bdc059c2081907c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:35:06Z), 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/USJ3V2024218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2522874aa761aedb8be30c44608c65c1d1d2d99ace928a9511c684dbccaf10. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USJ3V2024219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9893f58b05bdfa90748a2b1f6ee91c2b75626bfe2e585a194d30ae4f2a7f895f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USJ3V2024220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5127a4f5444083d08b52ebe114c5dd64651b964890197ce0837a50adc7475d07. 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/USJ3V2024221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd743a3f5e70f59f8ebd0f907283470568b97e568a0c05765b4f5811a03309459. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USJ3V2024222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3445c6dd5020f8a8771ba7eb64e2be1f4bdf51f7d8f0e319b1dfc9da41c741ec. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USJ3V2024223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e97a527a91fba5eb17bba77a1e1216c50ab7760c79af29af810ce0680c6d27. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USJ3V2024224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048fb2000ef4d6997b6e30750b8ef7821017d00d1c487c3b2d17ec1742e1d97a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USJ3V2024225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ff4def069caf4124a024f3655238fa3a047f147b4c53124fa814224569ff70. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USJ3V2024226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8bcc2ae5c715a654c346df29cf9d3711fc83d6db40faa2d27af03665587d78. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USJ3V2024227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27e227c707df63ed247260169b1a43dd6a06758f59c55691bfbf7f1fecace02. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USJ3V2024228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e43b3f691aaacfc792dc839d0c8cf1dba7bb65b016e742b5831ea0f959eccf5. 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/USJ3V2024229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fd43dc7dbd91de67abd38d0959024ef7c9b66fe83e4884a7a1b8528dcb559c. 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/USJ3V2024230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095ea2396918cee57eeeb668e7d554763f6129b7b1421dad4e4f178ff54d869c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USJ3V2024232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d73aa7fc17febe46a80f13b32751631583a4c73606b0fdfcbd2d486d0273713. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/USJ3V2024233.