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 0x318366e7d17549051a1fe686c2a65b7ee03b102283c004660200346b499a9cea. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0398a756-54da-4221-8a0a-bec1876468f4.json and https://artists.proofprofile.net/proofs/artist/0398a756-54da-4221-8a0a-bec1876468f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fight Theme (From "Attack on titan") [Epic Version]
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 0xde03687c7ebac212f06cdc845eaa469707f56df103d15a44de17e4cf78183429. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUGBT2408892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e30710d8507d07c57d884fb5b83a29880671957afc271f748964564015a67aa. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/AUMEV2531927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb672e7a49881e5953e948147342987a453dc7d917689630fc353d7e2f0253c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUMEV2534696.
The Fellowship Reunited (From "Lord of the Rings - The Fellowship of the Ring")
I See Fire - From "The Hobbit - The Desolation of Smaug"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626ad74b398e96769bb8a2e5fc55b687cd010a4e0a98992a3ed225fecf8ba7a8. 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/AUMEV2536893.
Damned (From "Call of Duty - Black Ops Zombies")
Floating Castle (From "Final Fantasy I")
Fallen Order (From 'Starwars Jedi - Fallen Order')
Bara Bada Bastu (Medieval Fantasy version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b50feb860b537ac028328d117ceb3f6ddcd655346adca035b535b8b507dd078. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPJ32311853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd866b7114bbf451fe786796d9f7c80eca2531b970da22b8f9dee82b500b7816. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZPJ32346026.