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 0xcfca2405adf913c56d745ab723440e013b3c57e31fd7e41dc8271711539cd4cf. 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/d25bb4cd-4374-42f5-b082-6b78c5eff99e.json and https://artists.proofprofile.net/proofs/artist/d25bb4cd-4374-42f5-b082-6b78c5eff99e.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 0x0b4b26fa22998f19cb4c1a111da5ddea49c9ee6a770edde8954adf745240d6ca. 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/FRE429001320.
Un jour on se retrouvera - Générique de la série TV "Sophie et Virginie"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09769c643e251657909e7df951ca0c77ce4cf0338c1094f74514911fc6cd3c45. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRE429001380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1383be88222cc9e6efbfdfc5f3ed215413f146a7b4a825e7e206c73c3581b2bf. 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/FRE429000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8d5b74ba6cdd22a5f60fcbd73188752ae81406349fbc63180fe3d852a4a1ad. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FRE428800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76811f1b963a988925c17cae3ee1c1f42af3931802afd88af6e76e295609a1a6. 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/FRE428800860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5add35177b69a79f969713f46fc53d6efc8aee7ed5a074a8110a188836ba0969. 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/FRE428800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd8871d0c600d28962ac5f09a6871b6be26e1ae43018ed74770dddabe95e470. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/FRE429000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa471e52f96f7acad86ce25eb6afc5061728c993114dd7bce8e06268832c73d31. 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/FRE429100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6854307b94a03eb39d2803b3e2c9e651b4de9033c4285949f703379c40d49807. 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/FRE428801070.
La chanson des chevaliers (Les chevaliers du Zodiaque) [Générique]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6854307b94a03eb39d2803b3e2c9e651b4de9033c4285949f703379c40d49807. 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/FRE428801070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9572a021cb430d5d795beaf8a0521aa2dfca3206435e0dbc30f83317e8018e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FRE428900580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed072a08e0c83808615bb5c99ab0ea22a4acdcd5856c0b4d86890de01b6b831. 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/FRE428900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b129b2569756fa2d23318e4d906a8e294b9d27c17c6b3dc122277ed0f4b25ca. 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/FRE428901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6ccd988f79f5881abe7b60c9d425c7b5508fcf84701b82733ab220b0ed5798. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRE428901780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128b9e5a9cba20c2e5cc4287019f010d02b5ae39ce9ef2a4f189ac18290d83c2. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRE428901820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cb058abb3bce715547c430aa2f55893ebe5d45c4248912b2f1f9026755e762. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRE428801630.
Bioman est de retour (Bioman 3 Liveman) [Générique]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b5dcb140d7a7b75139b80aa02495333dcf763ff020f5cd84fca2534b170bad. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRE428901800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc59f5d99acf80243e66206d270362abf79eb2249d7630e3fa72cfd72abdb93. 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/FRE428900780.
G.I. Joe (Toujours au combat) [Générique]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb86a8f61fd37b62744385c2c2b818052ee97d2a8c5951d82e39ddd95f7f6a9. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRE428901700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0aeff4568813787ab00b5898940003ff558dd97313e86ea4955fdba4e1a080. 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/FR6V80850419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb103931c010dc7f0108b161e7e4f874b2181ce12c895b9af762080e13c373227. 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/FRE428901830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a696d38080c738f3036680375b856141cf108d8731a9863c63695daac93e26. 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/FRE429000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e209f3a0a8031cbcf7df9f4ec43b3e048cee98973b04ea7fda5967aaf76913b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FRY401900018.