Fontaines D.C. are an Irish rock band formed in Dublin in 2014. The band consists of Grian Chatten (vocals), Conor Curley (guitar), Conor "Deego" Deegan III (bass), Tom Coll (drums), and Carlos O'Conn
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 0xceb4550daeb017fe44ad5ca204f9cf6e2acabd6e58f617886ed23c9119dfb913. 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/977f6c17-66e7-4333-b555-3e34884b45dd.json and https://artists.proofprofile.net/proofs/artist/977f6c17-66e7-4333-b555-3e34884b45dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don't Belong (A Take Away Show by La Blogothèque)
Chequeless Reckless / Boys in the Better Land
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 0xc245a5111ba8c65260099091afe37cc42daaad59fb5523b50d4d14b5879b57e4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:57:15Z), 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/USBQU1900480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc245a5111ba8c65260099091afe37cc42daaad59fb5523b50d4d14b5879b57e4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBQU1900480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1359363067fd766270b45fcb94eaf2260eeabf9ad324e1089331e9a393f49895. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USBQU1800211.
The Endless Coloured Ways: The Songs of Nick Drake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035638e8b8c3516fac8b62f1429f776bd082f429bd12c5df06eb0b65a389101e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USBQU2200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00c6607da3a57c01905ebc02225ca5f0bf572ce2c2320c69751f46e2b44a34a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USBQU1900228.
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