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 0x686690f3a268cfd12ca5af54876f94253a814fe79211504ed4baba81d9943110. 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/048f571b-969f-4fc4-83e2-5a0b9c49ded2.json and https://artists.proofprofile.net/proofs/artist/048f571b-969f-4fc4-83e2-5a0b9c49ded2.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 0x67b346573e7efa42a31ea31331d3bb073be13d2917a69aae627929174865cccc. 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/QZGWX2056218.
JoJo Sono Chi No Sadame (From "JoJo's Bizarre Adventure") [Swedish Rock Ver.]
JoJo Sono Chi No Sadame - Swedish Rock Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536b20c51f9a8e03c32940956d8a00ec08cdcf9d4fe967fd13180f09ba5f1bbf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGWX2092942.
My War (From ”Attack on Titan: The Final Season”) [Swedish Ver.]
Makafushigi Adventure! (from “Dragon Ball”) [Swedish Ver.]
Giorno's Theme: Il Vento D'oro (from "JoJo's Bizarre Adventure") [Swedish Version]
DK Rap (From "Donkey Kong 64") [Swedish Version]
DK Rap (From "Donkey Kong 64") - Swedish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c59bfbc546cd9263ac98c9fe152c1d93279c4fa88a2f62bb87c1e0aeee94b7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPJ32154696.
DK Rap (From "Donkey Kong 64") - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89006c4c3ce803d1da1aa336ba05eacdef26a8ad0d4994186f9837aa56da5ca0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZPJ32154697.
We Are! (from "One Piece") [Swedish Ver.]
Dragon Soul (From Dragon Ball Z Kai) [Swedish Ver.]
Guren No Yumiya (from "Attack on Titan") [Swedish Ver.]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825906d8d92118e13a2cefd893eea48d266d634ecd1020d6bafa8707d594ed7e. 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/QZPJ32203290.
We Gotta Power (from Dragon Ball Z) [Swedish Ver.]
Mario Bros. Rap + Do the Mario (Swedish Ver.)
Misty Mountains (from The Hobbit) [Swedish Ver.]