thumb|right|Delia Murphy Delia Murphy Kiernan (16 February 1902 – 11 February 1971) was an Irish singer and collector of Irish ballads. She recorded several 78 rpm records in the 1930s, 1940s and 1950
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 0x9017ba292c1a46d1ba3fbf9d358bba5e80c4348b61c30fe0cedfd0c2a6f28cc3. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b516f83e-2785-4899-8962-bf425938235b.json and https://artists.proofprofile.net/proofs/artist/b516f83e-2785-4899-8962-bf425938235b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Spinning Wheel (Digitally Remastered Edition)
If I Were a Blackbird - The Queen of Connemara - The Definitive Collection
The Queen of Connemara - The Definitive Collection, Vol. 2
The Queen of Connemara - The Definitive Collection, Vol. 1
Delia Murphy "If I Were A Blackbird" - 17 Classic Tracks for St Patrick's
Irish Folk Collection - 40 Tracks for St Patrick's Day
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 0x1b2a389d24f4a70ac4034bdd240df78ef92dd2f1998ddf9cf65f7f40091b273e. 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/CB2CY0932997.