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 0xba7bf9964fd7f9cfa7ca2a3c7dda3b8f9af8c43d0de43aa11f86bbff9fbcfbe6. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bbcff76-230e-4b72-99cd-99ee869fa152.json and https://artists.proofprofile.net/proofs/artist/1bbcff76-230e-4b72-99cd-99ee869fa152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x37ee5a7705a72488db459dbfbcdd44d8eaea0c9d99a5b5232d5f53c3a74322f4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCABG1215270.
The Moment: Pt 1 (Original Motion Picture Soundtrack)
The Devil and the Daylong Brothers (Original Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e48b3fd5164c0fb6618831e829b8a027f8b8b2d1d675e928042beb77cafcbd9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCABD1228619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0723a2e0788a2e9f35fe28a6c18b7aaf9b7bd7150c9c187fcc6970df3a0823e5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCABD1228618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f4fd32708fc1c25e2714b13147d2ac679fa14f876df9b604e2f3815b763c4d. 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/TCABL1369636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac456182b7822333fd71b6a68dfb523c4b348f580523c94d0c90ed198b7e397. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCABL1369637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eb3dec740fb1191066677469e6beaaf74bbcad599c2f83cd139f0dc2640bb7. 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/TCABL1369638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c4bb9015b0184c12bf4aa9902898d9b2d787d31614ed30899ddb43dafd017e. 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/TCABL1369640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9734384181ce976b9292e90b3cff89298bdaa1d0441b31bcef8efe5254282ac7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCABL1369641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3b18820bd57f53a2b1cbea0881038fcc0ec01519a310b8755cc48773f0d259. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCABL1369643.