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 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 0x2b7bd64fe63ff873549ed309dce3653aa009fb5daa1a0f01b662230ee2753226. 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/14f234a8-755b-418e-b9cf-c2ee0e3667c2.json and https://artists.proofprofile.net/proofs/artist/14f234a8-755b-418e-b9cf-c2ee0e3667c2.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 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 0x535d14dd8c5a4a4660fa7403dfc33dbcd12f99d89014f785d2cd61abe425086a. 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/GBLV61720960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfb850624dcb24ef938749a9ef1e28c67af6e588df89be72d6e58acf0866b1b. 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/GBLV61720961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d69f90c7dc5898f5a2a34acab76b544686661e379cd7dca159910c67ba83d94. 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/GBLV61720964.
Secret of the Magic Garden - Crooks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd38fdf5c2d39fa0d40dff2a90a258264dc0c97c32a76dcaa9da55d9923d4ca. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USA2P2027339.
Kahela Ham Bani Na Bhola Ji Se Kam (Bhakti Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee19c1db8026d007ee406414b791f710db51c1583c4515753af086be3159a32f. 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/SE6XY2551456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f6aefd8d07f90c631925939d045e750729b4f96a72e630fb6b14803a6f3661. 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/NLZ542302115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ffba3ddd5234596e7c9a6b81c63b916eef19515ba4c4b5a3d7517874f30bb. 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/USGCV1499784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d3cbffd21947e9a43aa832b61cde020a473d1454c677b07e55d3c14ecd0cba. 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/DKZVA1861891.
Secret of the Magic Garden - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbd5d5f80ec67ae6edea4dc7412f5987b5ed0285cbeb40240092984b70dd5b9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBBYB1602667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e033ec19e8ed4400e44790f9ea263616d431269089c13d4637395dea43d3e. 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/GBLV62410339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4bb98de4c51ab4d2d4a2cd77c1e0ea492239ab504acf4db5336faccfdca7a1. 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/ARQIW2501776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2fbf9e184eba2ff6680d329a25594e9ab7dfe5e350151f39de6406bb38ee06. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/ARQIW2501777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6487e27de8d75b8835aa4dd05079667a5816801b556f8e77a58658a5f01bac9b. 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/ARQIW2501778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc26ae04487942c261d51dd3e358ff62b51ec11ae20b12c4c1af001da0c4397. 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/ARQIW2501779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed69583f9c7ea7ee0d0dfdd9052b49230bdbb4e82e1ecfd5bb385b61541ff0c5. 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/ARQIW2501780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f7deab4cb5432cfa2b6b41740e62f4fdd31dc7692289d75c5daf44215ba2b1. 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/ARQIW2501781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf519c43df4630445a7f1f0f26eb89016ebdab6cb141eadcce9591334ee5d05e9. 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/ARQIW2501782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6246b27bc954586baa710f0407a5c4fa5c06dc2f4299622f098d4fa9ccdc8a33. 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/ARQIW2501783.