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 0xc5fc83265b750c79cfc4a31b85538b8447f9ff218a5d2cf8ae8748dcbe61e7de. 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/cf94202b-6434-40a8-a43c-f08bd7dfcbd5.json and https://artists.proofprofile.net/proofs/artist/cf94202b-6434-40a8-a43c-f08bd7dfcbd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How We Roll (feat. The Lacs, Moonshine Bandits, Redneck Souljers, Bubba Sparxxx, Demun Jones & J Rosevelt)
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 0xe3a4579c181a269cd025a16e314c20e4e42b21fa546e0323cd080c679a785f74. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QMDPP1600260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e823867d0079d975295cd8cd7386dc929945a4f293a2812a252832551dab6b2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ9UU1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dde175e09336e771bda3954efeb8efc0133db24fd3794244edcc84c0334ae11. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ9UU1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6607d84f3daa4caf2d4b15ce010facf15312c847b78bfbff298550ca63e644e9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAEP2042315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dd8ed0a0bfe8937abe61889822a917fbe90cf5416b6eef2d19aa13915bdeb9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:41:26Z), 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/TCABR1353265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971a46d7b4ed559400e925989007143f56307ec17b0439b7beff6bcbd7db0ff6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USKO11400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c56200c4e6875422b6bfc87ef481a8c840f6849fefaeb6b320927a9fb3d9a2. 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/USASN1109924.
Survival of the Fittest (feat. I4NI & Irv Da Phenom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d8826fd2e3fb0a7a051368b01270b66849323ea481fdd08cbbd6b4ac1a6a02. 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/USHM91343283.