thumb|"I Shall Make You Fishers of Men"; a stained glass window at Kilmore Quay, Ireland "Fishers of men" (, 'fishermen of men', from , 'seaman, fisherman', and , 'man, human being, woman') is a phras
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 0x008328f05661c7097f6687dd50e41a5fc43c708bf68e43d963d75486813b2e72. 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/d6ac6d6f-f096-4c9f-8231-39377a7c5eeb.json and https://artists.proofprofile.net/proofs/artist/d6ac6d6f-f096-4c9f-8231-39377a7c5eeb.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 0xf7783962c33e1c1e4a126e365a4d0ac5a524c99cc7e63495f511688d4230f407. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/GB96Z1103187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0f42a5ff5fe3ace524757b774f886457b35b9722e61d41aeb3d447b461bf34. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GB96Z1103189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c726e8ad97dd63be0a0cfcbe5ab967e6c384e8bf5df284a2b687d571cd4ab9. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:09:45Z), 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/GB96Z1103191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6687fa7a7dd3ab965dfcb5fc01d24f42b19087b2bfa7845dbd62af96961de1ae. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:04:27Z), 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/GB96Z1103194.
Through the Flood (feat. Alarcon Music Productions)