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 0x3a0abaf1fdd200c3190c96c352bc3103664dbc38864cfbc291abbe2e0754e25a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69881848-a7d9-4b17-9e63-c3267146f012.json and https://artists.proofprofile.net/proofs/artist/69881848-a7d9-4b17-9e63-c3267146f012.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Armed Gang / Street Level (Special Expanded Edition)
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 0x9f0dc2e03a4dd23a06c7cea13df380f93f99b2e126c72bb04a2d617bfda69ed0. 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/ITB450900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baaab6b82b29a33ea1822beb6729f16328b0b8522e473b2142d7ebd81055c2d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITB450900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200619086db6a5ba5ca2133a2662ed0ef0c6c153361699c51d3edb94310c70f. 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/ITB451000342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6c312c26c681e8b500d822ff8db6170423de5c7572bc3fa50d5c5b5fae9394. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ITBI31100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0dc2e03a4dd23a06c7cea13df380f93f99b2e126c72bb04a2d617bfda69ed0. 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/ITB450900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6c312c26c681e8b500d822ff8db6170423de5c7572bc3fa50d5c5b5fae9394. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ITBI31100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e670e01271b9e8fdb01e98df28ae4c8c727ae471e5352fcb5eed7074e2f5a6. 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/ITB450800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475577148a074beb356a0927090b1d746a39a77896fc3b2a8931a94390da6f25. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/ITBI31500123.
Kenny Claiborne and the Armed Gang (Original Album and Rare Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0dc2e03a4dd23a06c7cea13df380f93f99b2e126c72bb04a2d617bfda69ed0. 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/ITB450900011.
Rare Italo Disco 80 (Original Rare Tracks)
Musix Records Collection (A Special Sangy Production)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6c312c26c681e8b500d822ff8db6170423de5c7572bc3fa50d5c5b5fae9394. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/ITBI31100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61dc244d9752018ddb1df953022a61b0ccf3c090eb4cbcd0565980a04921460. 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/ITBI31100212.
Italo Disco Mix (Original Disco Mix Tracks)
Street Level - The Armed Gang (2 Original Classic Albums)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa200619086db6a5ba5ca2133a2662ed0ef0c6c153361699c51d3edb94310c70f. 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/ITB451000342.
The Things We Do in Love (Songs for Romantic Moments)