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 0x2b933264f2b0abf673bcd819d5dd5dced128d977f0d72ff6ae43576d2ed2d8d4. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e56924d-ebad-4070-af69-31033ace4386.json and https://artists.proofprofile.net/proofs/artist/6e56924d-ebad-4070-af69-31033ace4386.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hilarious Jokes - the Best Jokes in the World
Hilarious Cat Joke - the Man and the Cat
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 0xe00506867a52bdffc1f9ab9b1ab51cd3af5ed9f28bb31fb52918d26a3b351e66. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DELD92003012.
Farmer and City Dweller Joke - It's All About the Duck - Totally Funny
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f4936ef8037c14fcbc3ef1e3fbb36184d8d4bce2bbe07b162dd06b5789e129. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DELD92003013.
Jokes for Kids and Family - Laugh and Let Laugh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263c9f476f148fe98a2902b2b845dc49f9bd0217d1e96ce55f14598d8c97632f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DELD92400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffff5ae51dc0fbb4b8e32bca229f2d250ede8d2fe8eea2f261804366dc9263f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DELD92400261.
Holidays Jokes for Young and Old - Funny Jokes to Make You Laugh