George Fox, July 1624 O.S. (July–August 1624 N.S.)Fox in Nickalls, p. 1: "I was born in the month called July in the year 1624". – 13 January 1691 O.S. (23 January 1692 N.S.), was an English Dissenter
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 0x0329bd9de4b4f4d3caf656b31f45261f685b2fc02475d137578755fd1cf01f17. 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/d1a1ce4b-9ad8-4238-842b-32d9e55fb0c9.json and https://artists.proofprofile.net/proofs/artist/d1a1ce4b-9ad8-4238-842b-32d9e55fb0c9.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 0xb7123ab7ecf2ded516c38712a3314115e17abc33f9575d4d523a39a2797050e7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CAW118800369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa692e78715bfdb995081f3b6e91d7b3580d5913537fa980fc9c4bf99b32d6795. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAW118800399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b66a2fe49c2276abfbd58929d3f95126ec39a73ff9b57c7c33961372ac36b5. 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/CAW118800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac65f044390ed317a5df14d3f7b7f1c747be3c90d515e68f6c8ad46792607c8. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/CAW118800404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6b5c8c040e1a297a789ea17ffb1ab7b166ada0c99d4ded96684dad107759e8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CAW111300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfa53c3021361daf9be4c92c2d54fd37d41926221ceb29ab7c59eb980dca40a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CAW111300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c77b5869c584490620858cba01a3cc7d82b671a612c0b304a88f1c3fa8bddc. 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/CAW119400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fbc89f95a0ccc119c779b0f9196a857510e106fd4337757ccc7386a37decb. 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/CAW119400783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62183cdb21e34e92ec55bc1a92323805e47d4a3a539b2baa12520a7ecf495f09. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CAW119801480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcdc01304bb88cdf258314fa975e2bfa975a5608f3da411032baadfba5cc3bb. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/CAW119801484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222051a1e29a20d51d42ac7cdbaf88bf0be0c8d0b96d0888b47de2310ea846d2. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USDY42180318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13567d730339efee055a7114849082692bb2a77d9063dd6d564fcbfc51d3dfdf. 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/USDY42180319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eafb7ca3043efe9285ac815b45bf2ef397b368a42c0ee5a85806bcd1f736dc9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USA370518576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfa2ef7a1ac08f45b26440855c7afa0ec3a18c4f4557d1bc17768e994a08a6b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM22101399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cb11ccbb30537549eeb03d92fcef918c8c7ec49b3900b228791bae31526a2d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/CAW118800398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79a1ebb0f5f4a9329b46be349f80e737d2da39b7a2c68479bab9f36f6c3508a. 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/CAW119400781.