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 0x8b0b98cb440e76e22d1eab98a9ad8713d719b901ceb6842c249bfabe0d6e35cc. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c552ccb-c05e-4395-a9cd-800342846975.json and https://artists.proofprofile.net/proofs/artist/7c552ccb-c05e-4395-a9cd-800342846975.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 0xa7801b532eb148cbdc45a10bfa7c021be6c9d7ff1cc7fd94917aeb8c45f9ace3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:42:14Z), 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/FR9W11818757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558b1e7d2e13e8ca990cd165425518c9b8088ae509b5fb8604a1e925e469c134. 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/FR9W11818277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581a830a7a5c6eb6cdca7b9970e1fdc0da9508ddddf4c81e526644b1023151b8. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/FR9W11818275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2673b1a1912dfeea9319ba89ee7c1b17ac3100b9bf3797efa211a0ab27ba4a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9W11827235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6ffe8355fbcd4e7dfdd221429f0f673c2d30f0b45c983c76757dd77a17c94d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR9W11827236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880c6fb2b1320a7e583d937f9f21578b1abb08631983e5acf436338421859164. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FR9W11827228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49354a3bebc2a83cb618034d3faf5e2a8008b27107d37cb9bf8a3dc1c0128d. 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/FR9W11827229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87edd2d8876222c149c2464af81a061fda8c4f9edf06af31f6731f0de5504d4d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:47:01Z), 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/FR9W11827230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c8cc680f75d79c04476faaa04266c769047e61e71610b9a037b7c0aaa60314. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR9W11827231.
Pourquoi moi ? (Bernadette de Lourdes) - Extrait du spectacle musical "Bernadette de Lourdes"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f6b67e923d6d42baae024622f6cbac6cf606b5ec7bb9262ef1b43839612ca1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR9W11818274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0212c5143d87a275f9ebedee7c8bbf139a69692920f39be938a90b000998af. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:48:13Z), 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/FR9W11827234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2673b1a1912dfeea9319ba89ee7c1b17ac3100b9bf3797efa211a0ab27ba4a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W11827235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84000766e114061d8ce008d2846cbd716e1a6491e3beffe79da8fd680d9b92a. 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/FR9W11827237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb14b572642d16db4c7f5c6b89c5e84d53db689180e9d63ef93f7bc4f3a2e79. 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/FR9W12003728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1a7e18b7d5d763c378e4c9f2ccb3b8fb75f0bcdb69c4ce23ef68f628fc39dc. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR9W11827239.
Madame (Bernadette de Lourdes) - Extrait du spectacle musical "Bernadette de Lourdes"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5868dccb1bc6168fbe00d776168a149768a79f7e51d852353674e1764828e835. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR9W11827240.