Phil Cordell (17 July 1947 – 31 March 2007) was a British musician who released a number of records in the late 1960s and 1970s under several stage names, most notably as Springwater and Dan the Banjo
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 0xb30dc28507f93493ce2136141838dbc04c3396d2844a06c1165665bde5566bea. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b612c975-7873-49fe-9905-4cf17b618b7c.json and https://artists.proofprofile.net/proofs/artist/b612c975-7873-49fe-9905-4cf17b618b7c.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 0xa2e7c6830cb636287b42ff36cf45ba6eccb4f29fd05ece66c8545e02efa86a5a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:29:21Z), 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/GBHMX0823903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73623b201276f3289f4e42aa3b32a6c82e9ac8ff26ca6d7ceca0418d84b113e0. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GBHMX0823904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec70e4bbcbd56d7019b09da10902ee5e69d3d652918ded37cce6afcc802e096. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:22:20Z), 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/GBHMX0823920.
Separate Paths Together: An Anthology Of British Male Singer / Songwriters 1965-1975
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2033a172735019851b6bb743d9bbc2ce0cf472cbedc88eca23dd35659fdddc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBLY0701228.