Seán Cannon (born 29 November 1940) is an Irish musician. Since 1982 he has been a guitarist for The Dubliners and their follow-up-band The Dublin Legends. Early life Seán Cannon was born in Claddagh
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 0xd815b755ca4cd732853059d914f1fe4e41fea065903825b487e3ed4beabc0b2e. 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/263a8f34-fc94-4eb1-adc5-4b94fbe42ca0.json and https://artists.proofprofile.net/proofs/artist/263a8f34-fc94-4eb1-adc5-4b94fbe42ca0.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 0x28c9d96699643f3ee9c3092f795317d319f2c77eb0db4473549f7e6cbf0b2c6b. 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/IEAOF0700167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0960aab381053a1da60b8a03172a4bc99e8a286151f0f016c716e7d11129ad68. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IEAOF0800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff963e5a8434252fbc871e344ad32afbf957f02d342144aeaa185dad233b3cf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IEAOF0700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba2c86a2c26f72e9d070ceff3fb8533a4c2f44e61d091f75e3d893162b11e21. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IEAOF0700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d84a2dbea87d6e593a61aa77d57f0606486c96debc432f81733459fee096fe9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IEAOF0700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23803833c3d3403ca77a57752e7345bbbd9669235194cecec8dc751387273056. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IEAOF0700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4ce9cd986e1c9b2f87f9ed9b36e7f6ce3bf649a63bc37c29e97b8088b54431. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/IEAOF0700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1071e1c280d94e640601a9d473d5c8a9b667c110498c66bd59879035d6496cd9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IEAOF0700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cb200e5be910dc85fc2152988d0da872453848a521d63c73210ff684b56960. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/IEAOF0800047.
Will the Circle be unbroken - feat. Terry Evans, Donovan, Sean Cannon + cast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e88a3ead69eac67dbeaedfe5393a20b10202d311113d624d9a1fd5a6160d2da. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ATB130900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88af30bf7ea7605388a4ebb2d853a3c8f10428f9e37a578e323008d1ae0148bb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/IEAOF0800035.
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