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 0xf9c90c5adac623a184ed26d6a42c8574916b46275f683e6ff7ea5d312d50446b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab6d58ab-1461-49b5-ab99-bb564c3a5cc8.json and https://artists.proofprofile.net/proofs/artist/ab6d58ab-1461-49b5-ab99-bb564c3a5cc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Some Things Never Change - AKI Amano 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 0xcf7684b08dd5d0d25e175f29d950479025c97b7f8fee9a02495ffe0eecf89178. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US83Z1453723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f8890e94b233ae735e6bc23551a229eace6960e0a907a0217a6b212246457d. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBKQU1582756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1337d3825e544179ad188aaff46b2d8fc176927c86164bf0a6faa0fe00e5bae2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:09Z), 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/GBKQU1582758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fbfc02b521b44c89fc21edb5b1833948f93c8f59b4c9d849ceead9f08c3989. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKQU1582754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2cf854a2648559991b4e91645d2ba546f6fce50c9219a4ba0da88f559e9f84. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBKQU1613897.
We Can Be Beautiful - Nolan van Lith Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d63156e8f7471b6362d1fbca2eb406322a0d0a12989f6e6a8feb6b2a05abf9. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:44Z), 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/GBLV61640419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deea7a28a05009adfd49fe93788b9d36f5a4869aa6edd495b9dc25880da6a36. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GBLV61640424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b04726da578278354673a8800ff2ecd7523fe706002de8c41ceb4c6fb61b54c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1511608.
The Best Of Enhanced 2016, Mixed by Shanahan & Marcus Santoro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df4fa5e6a19821e7d82341618d7995927e748c53c76c6bde47cba1089313ea4. 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/GBLV61640377.
Call Me (Tritonia 453) [Tritonal Throwback] - Thomas Hayes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4e11d3b4979829184f283a015de2d42b69318fdcc75f3e3be44b6c4985b088. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBLV62305234.
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