Walter Reynolds (died 1327) was Bishop of Worcester and then Archbishop of Canterbury (1313–1327) as well as Lord High Treasurer and Lord Chancellor. Early career Reynolds was the son of a baker fro
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 0x0788a5877ad8d932ec1a8595cd6492b1e65cc926513c6f8aad68273fc9b89de7. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9f54afe-7c84-4cc4-a09b-ca88baa65ae7.json and https://artists.proofprofile.net/proofs/artist/b9f54afe-7c84-4cc4-a09b-ca88baa65ae7.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 0xa80102d0aa30ae804368216be4c88133c2e4722640775b19a0a7457b20736953. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:30Z), 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/QZNWX2201703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3022abf1765f75bcaa3893da709418dc27c6b49e56b25c03b2e6a781f1b37654. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:20Z), 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/QZNWZ2204288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edcb9dbfb06aa1a4f3b3e31f4ce0d4e0bd03dce82d146cb63a81286cd21a4f6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:06:25Z), 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/QZRP52257088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d43236912600e37de6b4bae48efc3e55cecac2c867066b4a6b13f61eaa5770. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTAW2262834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9757deaece822f54de7f223f553cd9f94f21ca87d8c4e7e92c744c0405d87b62. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFZ42305761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6538e5b58e10d03d6a4b1b9dbee3360975159a7117818f33e99d1d1c740c5fa. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMEP2376404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c951645fef59ebad1c0d82ef092d5ce118475f0111030ef8bbcd43831056c4a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAX2385036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57f88b5ebbd3173c113b84dbb3b0a76065b7994eb78ee853418eded992a314d. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZFZ72437808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b01a82d5fdc9e0bd7cbd518abbe01f9dc105befba446698af6f3ab3fa53bdbc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHN92457201.