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 0xe04cecce6e96dbdfb518d4522b6fbbb065870d5f6aedcf77ccc99fd88f547e93. 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/038329c3-0fff-4580-82ad-8afe8d5e3e75.json and https://artists.proofprofile.net/proofs/artist/038329c3-0fff-4580-82ad-8afe8d5e3e75.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 0x3a960b4ef1ae5caae50223b5cbbb85674d822e56f535f8c077fea11da831fe20. 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/FRIDO2311173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b199870dbb96ab187f8ba76688cfe5a4fc4e5d524f24143846730ce75c09d8e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FRIDO2311176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e21acddb14e06f93e8b3221dec2c5302384093f58a38b89b77cad3e480fb368. 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/FRIDO2311177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa72657708f14525ce0d26e6c879f970f83d92e7da8f09a65ba824a120633f6. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FRIDO2310973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cac7c9b97098458be786955b2c9e74393773893f85f02e41cb4921d4e22b3f9. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FR43D9300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb199039c099be9871101d49ab5244dca4a6ff4d152a85453836bf78552751113. 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/FR43D9300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bc77e638b409f6835f1b55a9a9f1be1bce121cdd0540e1201fdf55b7d12618. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FR43D2101250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509e9f5db897850f860a5fbe9a17de3132a9b505a9a2fe8b301b3fe31224d002. 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/FR43D2101251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cc3846d53ac28a3c1f545f7aea44d69f402b13d606da106cf341c91094b545. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR43D2101252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eb5103fce17d3ed8778e1c5a8bd5c93c373974a1886aeac1fabd5f96ebc01d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FR43D2101254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9903fe4f5e7b7973a425f51723247e97f5b1f277880a19b940449d74bda090. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FR43D2101256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86d6890b800cf8afd5e264d76935f203b4eab7420fc4f275a2d6d4986310f08. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR43D2101257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d32cccf973a5396168e53a5553b875f840bc0647d803ab3469e817d6d10add7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRIDO2311122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad475193c0f7fe944aa77799aede3c1b100ec992d74fffa679d7f94264e4bfc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRIDO2311125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84a6971b432b15ee71992fcc176ed629472b349a829f4f6848fbcf02d64e71c. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/FR6V82096445.
Lemhibw themouth (En live 1982 à l'Olympia ) [Remasterisé]