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 0x91cd96b86be5c70a1b29b5302888ec8ddfad46d1814e9df7888ecee44bbf5415. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/866c8eac-a3cc-403c-922b-9426ecf2d789.json and https://artists.proofprofile.net/proofs/artist/866c8eac-a3cc-403c-922b-9426ecf2d789.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
70 Génériques TV — Séries Télé Des Années 80 Et 90 A Aujourd'hui
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 0x57f0c77da2447da8588fc3979d8b3879006db9909dc4f635e448a94b8070e932. 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/FR0W61132954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf348e17fab2337dec594faa38891bbbec30272a5121fc297bb50af852782a7b. 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/FR0W61132957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8e33ed41aaea0794ca592de2928f7ef0daf544e4a8eb78e0406209ea650efc. 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/FR0W61132958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc646e4415c0ce15ee91771346ed84049b32e5750f01130db9169f74bad4cbae. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR0W61132968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe230e2dc201fe0d4c385aa955ec30aae1d7eafd2223689efd6526ca94f9780c. 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/FR0W61132969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acfbde20b920433c08321e7a8180f93fe527a6b1e50e4acaab1112fc2858ae1. 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/FR0W61132973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705d7f9eccb32947055d7e688831f6d97c80225bfb910d897c345f5c3360d3eb. 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/FR0W61132981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f9004ac9dcd445865c7b024ecc234e37a6d8afcd836930ae7b34f98902b4a2. 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/FR0W61132990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d38757392443f4258f46f1088f6199ff169e6e6804fdf376520458fa1548b8. 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/FR0W61132994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208c1b360d163b229fa881360b3a285557d9f4bba93556ee4f083d9bb0f08dbb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR0W61132997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b90f432a30a62a71837469bb1afe7d15a233f46f43182f39755e583cd194974. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:45:08Z), 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/FR0W61133000.