thumb|The Choir give an energetic performance The London Community Gospel Choir (LCGC) is Britain's first renowned contemporary "performance touring, inspirational gospel choir band", fusing gospel w
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 0x24754e1cfcc3af628ef3daaea0cc8a1fbd9881c36514e05285b8c039c3b351ee. 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/46b55a34-6626-46ac-870d-41f35fe6d33c.json and https://artists.proofprofile.net/proofs/artist/46b55a34-6626-46ac-870d-41f35fe6d33c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christmas With The London Community Gospel Choir
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 0x603ac2c76481a155c4cd13418925d759757944a50586521b6f7201258957417a. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/GB01A0900797.
21st Anniversary Concert Live At Abbey Road
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f80e3c5798918517b4f5d44a2446b417217eae1149fc5a27bcf00f6867bd15. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/GBBTM0342706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013fa96f89c8d14f54217216680cbe12386be9184340b7186b0cba28084d6c80. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:05Z), 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/GB9CC1000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa7bc9a9486b671c96704e44dfcf07e6d6665b57130283bf6c049f8a574fc4d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:31:42Z), 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/GB9CC1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f93aab65ee63d8c2e18d0c10d3d357cb72a639b160ca9790b7cc2a7a743bc20. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GB9CC1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33f98c2c95bd6a78fd5daba9dd3eea86a9bdb064d9b38ad7f4e9df17f70eab8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GB9CC1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d2d57b125fdc5ac191b4406e52ecdb05d50a379d27c7941f49cd9323ae043e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB9CC1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc298db49cc4d0b4af818fc74a1c357203fb133123969341545dfafd37b31b5. 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/GB9CC1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a15a4de0bbed04d369d9334170b9391592898d3b0123b4d4a4ebfcd09872a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:28Z), 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/GB9CC1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69109cb8391d6978e46ef942ba60f50ee1a7be2fe401d9994324fdb0cc4096a1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB9CC1000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cbd40d23db0a8dc1dace4739f0a6e7d3e045bf7b6e0bb69dfaeb5b34ee88fa. 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/GB9CC1000013.
The Best of London Community Gospel Choir
30th Anniversary Concert Commemorative Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a440b01922709d1f255a04507c761ce7ed08486b52cb337603236008805243e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:07:27Z), 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/USCGH1423935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29964ad8ab1cedbba2a4b483c0c883aae90b7a294af752a73ba3f9192d262d9c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZGXC2500980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c131070a01f779975ca705de5fe5a3a3d13f283b159ce003a9ba1086fbca4db. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBJAJ2100666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40996ae23973ae9313eacfc5ed760cea5aeae8307dab54e966f09e09aab86aa1. 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/GBJAJ2301337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06b09891aac81c0ed36031e3145ea7a38c76ad016bce61feac79a6a90cd1d8e. 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/QZQAY2167779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a565041aae0eb8b9c8dea7b23e61c7b6a93ff4bf94bbf7ee1f841fd0d4bd5f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBJAJ2301336.
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