James Berkeley may refer to: James Berkeley (bishop) (died 1327), medieval bishop of Exeter James Berkeley, 1st Baron Berkeley (c. 1394–1463), "James the Just", English peer James Berkeley, 3rd Earl
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 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 0x9ed1803cfa7166bc9d78df648c7cbf47e16f60a968cfabbb049c5adb06413e4b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83443e8f-0f14-4a80-93cd-c78687326ece.json and https://artists.proofprofile.net/proofs/artist/83443e8f-0f14-4a80-93cd-c78687326ece.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 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 0x2f391ae63268cc90d3ce47ef08e04cc60147c8d659e6b87a0b3212bf15b31804. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UKUDB2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc51d7c88d1063f3b746ce306d1dd8695ba63d73203731d4b765eb397e96621. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UKW3Z2401587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67303ee94f89105e3c9ee55d2fa15bdcef9f0ecff7d62b81baf37482e14edf6. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKW3Z2401919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c0862206f7a92097ba4dc13c47912b2f972b151e72d32ce9a572b598c0bde1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UKW3Z2500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b18c27f540093410bfdb63237d1d929c0f32488a5ccf36730b71600f18eaba8. 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/UKW3Z2500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413ae95987f842df3ce136ca0a2dc48b9a019afbfab9b77d1cc6bb3c93fe822e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UKW3Z2500511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb316fa136a6a477375d875a2e2ce1493b06a043ee4f5979ff3bfc4bcd2bcd6. 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/GBHEA1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c623856bb544d9a4ecb065ca011c81f5582e7d49c31f1bbf994eb1d268dc3. 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/GBHEA1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2a71c756f3d6e18e16d76c94a989e2690e363bbdb61020c13328800dbe169c. 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/GBHEA1900012.
Always There: 1981-2021 (40 Years & Still Groovin')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb316fa136a6a477375d875a2e2ce1493b06a043ee4f5979ff3bfc4bcd2bcd6. 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/GBHEA1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3254f39b9dab333740476345d20c0914c7013a5ad769cdff81f41819cb65f99c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM3DF2260376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36db62fb4d2c9fcbc7e352be7451b161eb1c2faa86d983d31ccae28a50caaaba. 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/UKAAZ2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aff31122656caaa7ad6b3a6bfaa56790e7c07e48af082a3e18794a239e19235. 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/UKAAZ2400004.