John Bacchus Dykes (10 March 1823 – 22 January 1876) was an English clergyman and hymnwriter. Early life He was born in Hull, England, the fifth child and third son of William Hey Dikes or Dykes, a
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 0x4d7ba4af458f7d89b61e05eb1f788beba24abf68e9e0a27c4f6c53740a7a6a20. 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/e07fbaa3-abe8-4866-b84e-4ab1a5f17e26.json and https://artists.proofprofile.net/proofs/artist/e07fbaa3-abe8-4866-b84e-4ab1a5f17e26.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 0xa3e0665410bfb356173ed98ceb11c65f9e641c71b77b735601542a7939d8f08a. 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/USRUF0910375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f6d7a76d8ce06aefa2800fb1fcf3abc1d137499c768ba80c455f92e121d212. 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/US23M1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3aec6b96d3b389259ff8ef9841726bc90a2f47a1d07ff21861b090a9dc9208. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBC7N1045804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043f4826792d9f92a2f40b9e246dddd55575d9256a489af3d213e211200e545. 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/GBF077141902.
Holy! Holy! Holy! Lord God Almighty (tune: Nicaea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650d7789e586f6562eb5d670a895649e51b231db29d0cc6fc7dee0789286b143. 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/GBF078540613.
United States Navy Band Sea Chanters Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fefc62d6450be259efc32e0c918fa2e89fad11ede4af1bb1e7a8f35c2491d8. 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/USA5R1134631.
The Choir Of St. Marks Church North Audley Street
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2940e3f105b61c50216e95c539c52f61a23ae90fbd8a75a803621af0c8f91bb3. 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/GBF076311610.
Lead, Kindly Light (Arr. M. Wilberg for Choir & Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111f2ab4763a2aa55275efd4e267b827f8b12f5440cb71b8797dc49f1cf294de. 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/USRUF1010382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5305dd7da3bffd70c0d702a92385d5a9762ddb72e044e654b751bce1736a5ffc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA4N1301873.
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
The Chapel Choir of Selwyn College, Cambridge
The Complete New English Hymnal, Vol. 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5263905ce754ed9e55e52028aa7f146cb9b5fc8240abe9790b4d424c621f23. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBXUX0871411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa054b57364b55d4a01d3923d8ee86015f27ebebfd853496ff0383f887fc05a67. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USA4N1300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe630bbd8f223b84a6ec1ee062685034541fad2224b2ff8ff297413c801fa8cff. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USA4N1301902.