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 0x516705a7502a6b6947bf6ce79cb9d2d860b2bf5cff5ff2eb8c72b79ff12076b3. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23e6fc5a-2baa-4cd5-96af-9ed7d60e6f17.json and https://artists.proofprofile.net/proofs/artist/23e6fc5a-2baa-4cd5-96af-9ed7d60e6f17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Project 863 : Season One (Original Series Soundtrack)
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 0x4b3def37c3ceb683ea6e4089a9f8a6802d04bcfeed50f80dbdf8faedf4b07206. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDUA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8c0724bff12fc690fa00e2307cd4b9be9fa94640fcb5e688bb1af2217f9234. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZDUA2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe907288ee905e46389ceb88d985d6d77fef99a05001e5076f73d321fa061f56c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZDUA2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234ac595b13a9fab2143485915c14d5f68e8deb231a84f09a8a95afb7ad5f9be. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZDUA2100015.
Project 863 : Season Two (Original Series Soundtrack)
Project 863 (Season 2 Opener) [Main Theme]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb252880fd7f34bd951dad2f33a16e819cd94b11dbb52b9ba7b0a3c21674eff48. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZDUA2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe207df5ba93acd1e731ec640bd709933317c92fef957a4a694ba1eb61b9a0688. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDUA2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa259884fe4b854ed305654646d081e6bb2e3d9c8f7384abe06a63ec591758806. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZDUA2100027.
Project 863 : Season Three (Original Series Soundtrack)
Project 863 : Season Four (Original Series Soundtrack)