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 0x9af72196d1426733a4e52f8e3e8f634fe6cc0bb1712f39b09fcc4989e589c745. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fefdae9-8f62-409c-b6e6-2145ca14ade0.json and https://artists.proofprofile.net/proofs/artist/8fefdae9-8f62-409c-b6e6-2145ca14ade0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Up Jump - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
16me. Paris Jazz Festival 1er. Novembre 1969 (Restauración 2022)
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 0xfffe927105837a2a90828fa4cf132933b89e4fa1511b774ce52fe0e6f00a3007. 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/ARU8P2200133.
Take The 'A' Train - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3114445c3331b694e53103847428ab9dae3de0196639cb537c633bb44e87fef. 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/ARU8P2200134.
Honeysuckle Rose - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebc5ec68f2c01d25d4be3a666e766af3f1c040a866ea24e898c98500d439caf. 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/ARU8P2200135.
El Gato - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7173dc843b5f231c14aa66e927f0526d99d6b5c9305497e58334f9509bea4c2. 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/ARU8P2200138.
Black Butterfly - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84deb8d6b2e08060cb5edfaa659f3ee7276ac30d83d2990063ac9a9acfdf36ab. 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/ARU8P2200139.
Jazz Fest: The New Orleans Jazz & Heritage Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6a9eb7e2d2808f6c9ac199578281cd505c7f6565faeacf6bcc7eb860870178. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USSF11925009.
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
Black And Tan Fantasy - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f662aee9cc4f6b1628160d7ad9b95cd387296b48bfcd53dcfc22fbd92fab681. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ARU8P2200131.
Caravan - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d6d3c4b44335a3f63820ce07bcf4dc037f3ad785cccd24086885c8ee0e2dd. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ARU8P2200132.
Black Power - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673b7329dbc8c462ab128170a376a6cc82b76571b574b3d8ebec243354b09aa3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ARU8P2200136.
Things Ain't What They Used To Be - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cc829f57a5996667c10822c10c007670f4f8513ef856d72e5abed1badece09. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ARU8P2200140.
Satin Doll - Live Salle Pleyel 1er Novembre 1969 [Restauración 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce6a8fdcce536c23170efd7b78271d7071e0a94a74c709af7be8b774704b2a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ARU8P2200141.