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 0x32a5e00af8bd82fb71fe1aeb0819dc686446a072a10ad9616ce9682bff6fb535. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e947ab7-177c-4fba-9d84-5d02e0cef015.json and https://artists.proofprofile.net/proofs/artist/2e947ab7-177c-4fba-9d84-5d02e0cef015.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa609a754e475e1c3a4e752d37b5482df4ce12f0ceb69b8d916965c86e81f2a44. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZDYX1800023.
Transitory Evening (Afro Travel) [T-ROM Remix]
Transitory Afternoon (Pioneer Material) [Kevin Ochoa Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441b4415a0e2aad81fc1b97f3befa12baeba8efea88cf434f328a7a5430e66d7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDYX2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431dcc9d7fdd7d70c0f1f6856f2aeb4dacf1be2df317fe3ea4cb5338056e3fff. 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/QZDYX2300070.
Tangerine Sky (Astral Base & Digital Mess Remix)
Tangerine Sky - Astral Base & Digital Mess Remix - Radio Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed46d52cf0574bd650fab0f6931af1777c4f4fa63fb134f48e29239ccad3784a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZDYX2300074.
Tangerine Sky - Astral Base & Digital Mess Remix - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc185e745def0a522df5592d4013333f1c81986134c6600772dffb9f05814f4a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZDYX2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b719edf83d8084d510d8606d9de8a13b8229ab2430bbe07f9d6ae0234b2faa7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZDYX2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0af8b687338195237268d58aca46ed4e430aaac4b0b9dc031faacd8b2e03e9e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDYX2400087.