Surrex is a hamlet in the civil parish of Coggeshall, and the Braintree district of Essex, England. The hamlet is at the junction of the A120 road and a minor road (Old Road) to the village of Feering
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 0x13e0344743a28aa4fef194aa8da877421692da7260a60e7b4e90f976850017db. 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/e99c93f7-5e2c-45a7-b718-f7249d5a9ea5.json and https://artists.proofprofile.net/proofs/artist/e99c93f7-5e2c-45a7-b718-f7249d5a9ea5.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 0x1687cc36735eefbea084afa886cfae21dd11798b5fbede2c423bf0aa9bfc80de. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZFZ72189227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7ae6883b844a2b42923556349600c9fc8a1a8436b4784ed3477dbce1b9c808. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZES92161262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa878d7b820bf442264ce1d39739fad966dc9fbbd7f3de5b8de823e683a8b2592. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:56Z), 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/QZTPX2246910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb24dc5d328a717f351b71821cb46b4768662fa66dbed0f9f1da6de4e4d442c7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKXN22063432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a993cb2a872c94a8d624a9e43f07c4922bb608990bcbbbc8898f964be39c556. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/UKXN22353347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3f733d0901954968b63a9bad6aa6eb95ea5e8e2b2a5708c42112536d3db939. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKXN22353346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1203f5f045694ced3bd526defd77ab75ea54e2d21581abc85a29c482a9bd07c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKXN22353349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0817d053cbffd554ef49ea2d1af1fd21895ff2e4cb3d1ce8fae2cc5a06b2a4. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GX53U2474600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d18c96cd18eaab7068f77d4bca954559f33e20a3dca24248451e8acb514caf6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:30Z), 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/UKXN22505487.