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 0x39a80cf514ce3cffc4779a77c9eaad2804f06bcb1bab2c388005fcd6a812eddf. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b05ab2a2-1221-457c-bc0b-0d98da07b27a.json and https://artists.proofprofile.net/proofs/artist/b05ab2a2-1221-457c-bc0b-0d98da07b27a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Wanna Rock You - Chew Solo & ChromaSense Radio Mix
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 0xc60449ff4d393a110e71185580b9c976e11f889e757daa48bc5246513cce37b7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEDD72120013.
Never Ending Story - Petko Turner's & Chew Solo's Munich Disco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e908d88cda8b0f7e0ea2d57a541fb6e435d19dcbdb843500ded0dea4f25be6. 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/DEDD71830115.
Never Ending Story - Petko Turner & Chew Solo's Munich Disco Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2e301148c3f46ad2ea9fe40da4a1673bca5ffe1650310b7f07b130f693bd2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEDD72120058.
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
I Wanna Rock You - Chew Solo & Sandra Gold Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a1ef172317b9f1bbfe755f8730eb358fa9fad998cc57bbf09fc3a695d72bfb. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEDD72120010.
Classics, Vol. 3 (I Wanna Rock You Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8d4d3afad6d8d3c7a1319176576f68912c4726adff963f705b3d6d4cc8ddf1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEDD72120064.
I Wanna Rock You - Chew Solo & Sandra Gold Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e38b80f4e34672beb0e909f72fc544f0ce837601b980be46e6ff5aa58eea11. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEDD72120009.
The Chase - Chew Solo & ChromaSense Club Mix
Club Remixes Selection, Vol. 4 (Back to the Roots)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae68b3e8f7e6a9825f294fb0af85da8d0b056343c7407202554e5dd8932e81c. 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/DEDD72020014.