1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x192a9d0e5ad8adeb9fa4f7ead5db4dd9bd29fa3d822de44dca945c243d46a56c. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a3fcaeb-06df-4955-97c6-20a7013c2479.json and https://artists.proofprofile.net/proofs/artist/2a3fcaeb-06df-4955-97c6-20a7013c2479.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 → block OTSBitcoinBlock must exist at that height 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 0xa354a1ccc1329e9f1d65538195db386aabf54ca2c0b5bf67a844eceae4a58fa3. 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/GBGEY2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405d6d3d4f41424acb34f0d324a9042a456b53f5458f13b6a828dee89e3df59c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBGEY2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c64a577eb90ad2f37a97feb9bf5d80794c72cce442e57aafd9b75b24e298c2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBGEY1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527419e2ed21a5bbd07b38487d858112fc020468e374aad90d2c6a85009efdc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKVRS2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf60cfb468e58daaa63d50ba860081f32bb49fff1cb727ea36912b75a5506cf9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKPL2171566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c62002956a158fc622632df6a61a3f16be0fdb78eadab633f82fde86900ed0. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/GBGEY2100010.
Red Man is Back Again (with a Lonely Dose of Pain)
I Spoke to Euan / Come Through and See Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3affcaee22ca5b7bf51734c59ff03c512c8a6914fa3149fce6ff30c2fad78c77. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBGEY1600012.