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 0x41c63ffd48e1eb698ed0f4fa1264e598309e8afc96d95b0bdca768d635fe8919. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76188cd5-3191-44f4-8089-971507562ee0.json and https://artists.proofprofile.net/proofs/artist/76188cd5-3191-44f4-8089-971507562ee0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
100CC Sunset (From "Mario Kart 64") [Rock Cover]
Olof's Sleep Paralysis Pinball Nightmare
The World Warriors, Vol. I: Fists of Victory
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 0x847d202e7e74fe2e0f40bef6c372ab9e885ccfe236ac939ace5ca452e812cd05. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:41:57Z), 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/USCGH2102890.
Out on the Town (Zelda II: The Adventure of Link)
A Pink Flower for Your Tabi (Mystical Ninja Starring Goemon)
Sky Chase Zone (from "Sonic the Hedgehog 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aa78741b5b3d153284b97572b30a634ff70f1b530b75c2f0f29caf43dc61eb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZPJ32358725.
Underground Theme (from "Super Mario Bros. Wonder")
Secret of the Forest (from "Chrono Trigger")
Bury Me With My Money (from "Sunset Riders")
Warts 'n' All - The Band of Exceptional Goblins at MAGFest 2024
Shop Theme (Christmas Mix) (from "The Legend of Zelda: Link's Awakening")
Goodbye, Twink! (From "Paper Mario") - Lofi Hip Hop Remix
Shiver City Ransom: Lofi Tribute to Paper Mario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5242cee7bf8930fdbc64cfc5db17ecea99e600a5692c6c6cab6e4565f499d8bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZPJ32443127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0b2347270b60679971bcc8c7de5e2b5884530aec98d1f53b4e6e089581c7e. 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/QZPJ32356691.
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