thumb|Daoirí Farrell performing at the Return to Camden Town Festival, 2013 Daoirí Farrell (b. November 21, 1982https://twitter.com/daoiri) is an Irish folk singer and player of the Irish bouzouki. C
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 0xe8eb7a669c0d1af1de5d117851e9ee50045e479be191ccbb005fa2c051f3a417. 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/47d45a45-91c9-45cc-865e-2a55c45c1e85.json and https://artists.proofprofile.net/proofs/artist/47d45a45-91c9-45cc-865e-2a55c45c1e85.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 0x64367c72f0cc6f0435128ab1e7830c42fd93ab5418500ffa8cb884ae4788d80c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IENLE1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac637d9c27e76d2dacc5df8fb1e046f85674ecbf5acbced6387fd3b14d828d3. 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/IENLE1600009.
Creggan White Hare / Bogie's Bonnie Belle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0ff614058c49e3601de76a29ec49e9fe9ef4ed7618c667869fe9c339dcce7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IENLE1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e60ff9c5876de2a4a2693c6baeea6c06041386feb41e0ea5052ddbd8d4f9cc6. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/IENLE1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb526295fba9c7fdfaa056de2735790511f430f2b03a68529741f89bb05f56d63. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/IENLE1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95846438a575f2d0a1b421510778a9bcd10eaa849fedf1a2a67fd96dbcf9f6e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:11:38Z), 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/IENLE2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc604eb52d0db0a499d989072d719605ce1d9912ffb11ae3cead6ef4c2d0fe74b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/IENLE1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b52d7a796ea921ed0b83133244f05245f97195c206c4cc6a571c2269ec7efe9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/IENLE1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2168184257d7f66b31caafbf6b2c49fe6dfa285cd080afdbba88621ac933974e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:53:59Z), 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/IENLE1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1d27493ae503ac512cf281a53abdc1e8fcfd91263c2e3fb31487ce462e0e52. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IENLE1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076d35bbcdd546246bb3bdb0274ee6b532ba6fabaf45ed1038ab1150021e17c8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:33:03Z), 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/IENLE1900008.
The Wedding Above In Glencree / Damien Walsh’s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3477e66b9edfba9941f0fa814b7fbf2fe990901599798ae2fc52c02605685d9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/IENLE2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813257b31257628bdbdbfa6c5c6ff751b627c2db10b0723ce70b19d0dc31a81f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:34:25Z), 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/IENLE2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3ae112717f35d28f25b838869eca47f2f83946f4311506716ab4f58e42147b. 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/IENLE2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3477e66b9edfba9941f0fa814b7fbf2fe990901599798ae2fc52c02605685d9. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/IENLE2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae36db738f623e4eedff723e2fe552e15c884cea5fc1098530ff2cbf34fbd78c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IENLE2200004.
The Wedding Above in Glencree / Damien Walsh’s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e822c018018ee8cedf8bb640726d2e1e42c15338f524dd740baf01b208fef2. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/IENLE2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84909acee0a5f605472b91cd720558f644984855fb872c2b1aedfc6bb39bef98. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IENLE2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508b3263d06bd59788d7f5afe99cc200b63ea72bf9483f332baa5cad54fe63b6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAIM51700010.