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 0xd14663256d1644e28bc0c1bcf010d42adb807e24fbe542a8111efc19ce871484. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ef0bd3f-dc59-4d45-b687-cccafcc84570.json and https://artists.proofprofile.net/proofs/artist/3ef0bd3f-dc59-4d45-b687-cccafcc84570.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Think Twice (from "Kingdom Hearts III")
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 0xbd822221112befa6c8fa20c84880f37f32ac90b676f108760eff76f26cc692c1. 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/QZ6K41800048.
Beneath the Mask (from "Persona 5") [2018 Version]
Blizzard (From "Dragon Ball Super: Broly")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d042f7659f07cb9da6500d1d56750e6e1f90f446126354bc0ee0f7495a5185. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ6K42200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7208d6be2677d049dbc8b3c9116123446fa0352d83695d57a15eb0cfaecd0919. 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/QZ6K42200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d042f7659f07cb9da6500d1d56750e6e1f90f446126354bc0ee0f7495a5185. 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/QZ6K42200287.
Setting Sail, Coming Home (from "Bastion")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac7bab14abee158aaac5fd164ba8d04f776ba4ced4d36989274b1d8fe38aad0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZ6K42200282.
Zelda's Lullaby (from "The Legend of Zelda: Ocarina of Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290d9f82bd0c759357eb454b250e2cf5143b26484ab90a8665c1397bb48093f5. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZ6K42200286.
Weight of the World (from "NieR: Automata")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcb3fd0130de9692b545b8f2109b58fc8820bf4e55c09648d019c2efa3279f0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZ6K42200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b1a48134e62561ccbfcfebb623db87fd37cd3cdabd458dbbe340c1b44e584e. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZK6J2546240.
To Zanarkand (from "Final Fantasy X") - Neo-Soul Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed0de97712c8e2e23c7636e5cd5b9fcb04311c5889a28122776df1079d3d282. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZPJ32326925.