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 0x22e57120c7347e0255d50c328e3a8e7fe6448a970007e28ed2561fdbbf963e89. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be3613d9-af2c-4d23-b24b-4dc9d3dfd647.json and https://artists.proofprofile.net/proofs/artist/be3613d9-af2c-4d23-b24b-4dc9d3dfd647.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pleasure & Pain - Jensen Interceptor Remix
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 0x9d220a5a525478ada18432503cd54f939c057317289467ab51f645846ca5f324. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEDU21500656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac213c8a322ad785fdc69f51793d3900761543bd353c44f8ec3ad4c95ca2680. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:41:38Z), 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/DEDU21500657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64ad4da9deb3dabdd0cba5175a0de6e8e4f04c4e46a5deb8099157584dc5485. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:28:46Z), 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/DEDU21600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e71739f14462ba5ac381a48e5224351186a1d49023858a92e45c586a5d020. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DEDU21600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb171c3e4474490161bf9288a29c12fa248b85c43c0ad62f2e7399f897368840a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEDU21800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9642af2ac80812d9718553ea03ba546fd1d4fe935df9b58aa7477df51ac691. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:21:12Z), 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/DEQ121856096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e30ff2d6d2a8ab0360e14903c6b4b341abed1c87189e3f915db75be9a2cd17. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEDU21800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc18b8649c349d8732588ca6b8733c222df5533854ded4eb25958b787c9b2789. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEDU22000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80140327059ccf69db66c99294c9a3cfa9ef3f368dfe75ccda94370295510271. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:41:10Z), 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/CH6542358900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b75de7659ed3549de2ea8ff2e4434f54b818923bff0c1c6ff86c2f00d84a2e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:08:57Z), 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/FRDX62406750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608d1eb60888278035a047d84258ac6fe850cf85d8acd0b10ebdaacb1672c563. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRR642401652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb95649cce1b98c45901af6406d28c90f2f7b8ba708058e8891b7b799ff7d0a. 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/USYLM1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acdbf3b0a6c11e0aef5452c48003fc46af1075abf475c927569788aebf8bec6. 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/GBJU21700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f8926f0a0f1a0728748b220ec5755010d740dfdc64b2e15633bfce57eb60e4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRU980900048.
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
Machine in the Ghost - Djedjotronic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb111144d8c747c99d1307012712b2334bb7d220ec52426d67db431b4fd0b36ab. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEDU20900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa863671594954fcd5c2bbd8bf13564cdebf9a217a596332ff77cc72d2c54da. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/DEY381080308.