Laurence Cottle (born 16 December 1961) is a Welsh bass guitarist and composer. Career Laurence Cottle's solo recordings have been mostly in jazz and jazz fusion. He was a member of the fusion quarte
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 0x9c3b6df4377a1a92e45f980d6f6f07cb77531065f57468399462566eb99952e7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e465298e-a591-431f-8ca4-fde7d4f9e136.json and https://artists.proofprofile.net/proofs/artist/e465298e-a591-431f-8ca4-fde7d4f9e136.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 0xef62070a5d4985a3c8a5077100aa61bbc9d8b969101e53dafe1de18db874bd57. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBGL9400849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21ce7d4f073cc7fe4503bc2fb2aaf119ef061561df9a7005d2e5f599752c924. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBBGL9400837.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade16207976169c11dfd956608144307cbe31773e5025be7dc221be2b7975c6c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBBGL9400847.
The Peacemakers: I. Blessed Are The Peacemakers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f79ad530e0b39498668df9f6a52fa92e3b5d2187d65f990932f13b09c1db07. 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/GBPFW1100552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6339ae177caa96c4515e067bc2fc90941713b92e3e63101c2ddf149b03f00581. 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/GBPFW1100554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b11fc6dc39bcd89003cedb9adc77aeb9962da2451cefdafd7d91477ec080ec1. 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/GBPFW1100556.
The Peacemakers: VI. Healing Light: A Celtic Prayer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36a118792d50b7034eda4470ade89a894d7ad1bd58422bdf8e2950deb6a7601. 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/GBPFW1100557.
The Peacemakers: VII. A Meditation: Peace Is
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4be2b62de22850864d00bb1a07fdafa3a53e63e0f7e24b0a178fd2adf5fa06e. 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/GBPFW1100558.
The Peacemakers: XI. He Had A Dream: Elegy For Martin Luther King
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c19e9d4128ad5f85719f37d8b508169c79d0fc82a4268ca8f26b4a9b72348b. 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/GBPFW1100562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31809c6ad79793d76b1a9e376b86dbc13ca3802ace43093012ba34eeaa68221. 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/GBPFW1100565.
The Peacemakers: XV. Let There Be Justice For All
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71edca1e4e6471c664fe0cc537dd22ffaa3ceba39e567f884b90d34423c6eff8. 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/GBPFW1100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2b4859dfbbe3d5779146c3cd45c403cff6cf0db14aa6ac087774dc0708dc76. 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/GBPFW1100567.
The Very Best Of Karl Jenkins (80th Birthday Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36a118792d50b7034eda4470ade89a894d7ad1bd58422bdf8e2950deb6a7601. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:37:50Z), 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/GBPFW1100557.