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 0x3eb3a0757b12a06e1bdf10366190309d42fa331e234e643520ee297c8f6c4365. 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/10bd241b-ac14-4b9f-a563-03a42a1e98e5.json and https://artists.proofprofile.net/proofs/artist/10bd241b-ac14-4b9f-a563-03a42a1e98e5.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 0x289d9f6d3df033388cc193b3946c885a5befd1e982af058a43b2f85d6afb0c79. 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/FRX088320001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6aa4cf40b94e471081aa5228171b1b9398fb52f5263c9c690c23d827cb4174. 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/FRX088320003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669373f1176591708f8fb19b0d014cee021e241574bf817d92add5bad7ea7d9a. 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/FRX088320007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a798df2c5e6008b59a035acfe9bfae076c8f50f7bb6e47f73695b593e49697. 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/FRX088320008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf21cbc7d5cf016adaaacc80c3b8b7863c263e8d1711da6d2fc388a7791b106. 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/FRX088390036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052441d50f10b22d0a1c3dc8a336e75f69230ea5a78c8ca029a0e28fc9cafb60. 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/FRX088390035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5b7f0925b337fe1aaca01d69fc1162d550ae7f994b8dbf4abe0f04cb1bc366. 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/FRX088390041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23189db2b352bcaf6d3669a7cafcd84a6ebbbdd814d918caddf60d177b69a0f. 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/FRX088390034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d9f6d3df033388cc193b3946c885a5befd1e982af058a43b2f85d6afb0c79. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRX088320001.
Les inoubliables de Hervé Cristiani - Best Of
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d9f6d3df033388cc193b3946c885a5befd1e982af058a43b2f85d6afb0c79. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX088320001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23189db2b352bcaf6d3669a7cafcd84a6ebbbdd814d918caddf60d177b69a0f. 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/FRX088390034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b19328da87da62afe7cdd78c9b7e9ed45828b7d5010471ce7a3462604c3239. 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/FRX088390037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8540182714cc980cb152e6d1fec90f1d566122a8ccb48a2d3be8e068fe2c6174. 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/FRX088390039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee381a6e2e4fe21d0ab6a2417e7782f0ac7262325faefbac6113e4fa555bfd8. 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/FR8Y71600150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58f9c860214008012893f344ec9378bd6ce4d1506361e176f1c8118592e14a2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBANP8600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0160adbc21327f61d7d2d9b7fcea83784b0b625139625b0690128a154069f36. 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/FR2MQ8300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c34855ed81fccd7d4d89bee28b184711f501ae6c59f490207ed3eef54f573af. 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/FR47F8500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb021333adcb74a2949bce2d7531c550ea4bd0ccc75093bbacda26dd61050f1a. 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/GBAJE8000325.