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 0x26e4be6cb9541a6727692c91c637b5b9c03847339e9e3ce8cb93752050ffd84b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abcde94f-d4ee-4eb8-a6ee-20252fc068a9.json and https://artists.proofprofile.net/proofs/artist/abcde94f-d4ee-4eb8-a6ee-20252fc068a9.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 0x6bcb62f4ad7102e5b27b227f8e0602fdda026ed855d4dc3364637093fb891715. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZDA42422211.
Smells Like Teen Spirit (Post Hardcore Edition)
Smells Like Teen Spirit - Post Hardcore Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3213d933259545e1cfa3ded778aec7835ee567d6ea3798a0a978828d242c0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMER2475242.
Somebody That I Used To Know (Emo Version)
Somebody That I Used To Know - Emo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43da0cdb772c16373b337c29d9c2deeda1adb02fc5647db194333bbf0ae2ebbb. 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/QZZ7M2402177.
Teenage Dirtbag (Heavy Shoegaze Version)
Highway To Hell (if Knuckle Puck wrote it)
Stop Crying Your Heart Out (UnderØasis Version)
Somewhere I Belong (Midwest Emo Version)