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 0x2f15b7a57189262b6e53ade39af1b9f1d71f05e7939d8260b110c158398015e4. 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/8391ca64-2dbf-4a5e-9dc6-49e60ec5cc39.json and https://artists.proofprofile.net/proofs/artist/8391ca64-2dbf-4a5e-9dc6-49e60ec5cc39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cool Me Down (feat. KalioGo1Way & Marc B)
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 0x99de4d39d0065b08e654579b50f6bf1eeb1b2da504ee745f5416cbcead2b5335. 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/TCABY1424958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100285b5cc317059445b973a75067b50c91e2dbb3fc630f7115d2642140ea434. 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/USUM70970976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6971dd00647f7a723695d487f0c707b1949356a6d42922eddcb1c812f4117a. 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/USUM70970980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106aba3d6a1f3614eba12251ee293f34e995c722aa411e574d47ae664a6bacbd. 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/USUM70970982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0df3848bc39ba08bcd71599c5f371896ebf31ee5759bb0da5c14af73e77398. 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/USUM70970987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9038176c0bf95bc15bac2b04532ac67b8ebf0ec2c5d60df28e9f26175b3f8c1e. 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/USUM70970991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85839b083e4a873c1eb33a6c0122a002fd5313e9b6cb237ac0542ea1459f2120. 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/USUM70970989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557da960d572dd5fe8bb173ed2e22f960bca950bc1a6efab29c9655126214097. 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/USUM72401323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50643a541152ddaa8b3c18bdd4ebade5c06d87c893a31fe376457eaf4e519c3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCABW1438059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f71eaeda7034cf9a6b7b2803d8038cec10fbde0efa7c29926f7d34e0f048d25. 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/TCABW1438061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3386ccbc0f8538e092b11623806b7201b65f49d92ea0d22422359863caffea9c. 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/TCABB1112299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ed61c163cafd4ff0aa80fb845219d150b406dbf39c05fb36b3167123af5ed. 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/USUG12303290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747eec751cab161bac26480076d5a5ccfbcfa94669cc9ddb3f8144c41b747194. 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/USMC10200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ca1a4d0e9b2d29f77bee4476b66e16963a072033b1acc512e3fe45050d3d10. 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/USUM71116321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46c8a7165295805a80ac27dc18cd3a222b8e4e9c7e654446c9e16f5b6b89e57. 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/USUM71604265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9ed41b40775ed678441edef71e481fa662f00d292219ed53e9639ec6c30f0e. 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/USUM70808699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9ed41b40775ed678441edef71e481fa662f00d292219ed53e9639ec6c30f0e. 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/USUM70808699.
House Party (New Motion Picture Soundtrack)