right|thumb|Peggy Hopkins Joyce portrayed Sharon Kimm in the 1926 American film The Skyrocket. Sharon ( 'plain'), also spelled Saron, is a given name as well as a Hebrew name. In English-speaking
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 0xa76b20dca40be53b5fb1d6c9c63d6659c7f79673493d6d8ed1a669686555fadf. 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/e00cc7d5-9923-4334-892c-3539cf66a376.json and https://artists.proofprofile.net/proofs/artist/e00cc7d5-9923-4334-892c-3539cf66a376.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 0x52ba23ee168caaf2918460f7824e4ec0d03e162f8971396a7a5784c9c593959f. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:30:10Z), 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/SMRUS0052240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8807584959a3bb3ff2a0f232ee09e1238f25a2037ada652e540ceb40b3b833. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:21:07Z), 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/TCADZ1884195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca8ae3056ad916065c3cc6ba01f77a39a4abcbc8a9e237c55e1f3de0a51fa47. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SMRUS0052285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6894f50b0a250a4f4b5bf40deaee8e5f5cce713828e4e3da7123e9fd2d092346. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:40:04Z), 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/SMRUS0055251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1557153ffeeeb07b1f3aa50a50cc4e4e83f00ff61ee8972f6772cbbe20fb2da6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SMRUS0055255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea9f3334f9e44c719ba82b7bcb6ee1f06fdbbc72b133a9e85d6aad71fa1da9f. 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/SMRUS0055256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686d66b607027f18e69476b775b7a2f6685070ba54246f7f45b65395b8840f42. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/SMRUS0055257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85d6ce4f28a2558ae39f6154699a7f5acd5e64cdcde91b001abfa2ff9fbc0d9. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:52:45Z), 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/QZMZ92089336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d98ea04d6297121e2924a5d84b3d8f40041698a68c87584ff3e372a4936101. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNJX2048129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f8f8d6c3774273678529bf7ea9d817a2da516bd551781aa9614347469c995a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:51Z), 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/RUAGT2306677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcdabf2f84dca8df549dc9c1e44c72d8505ec4ff84f108bb6384c976be4ab40. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/RUAGT2362664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f08c0e18163ac1491d14fe34aea8674987573818c3cea4a3fe42b99ec7739b7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/RUAGT2360871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940f2a9c69ab6b8b15925f8ded0caaa41feb01d5fb9f1cecf1fb58f0b12afd64. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUAGT2445091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9f5e7520385ff559be84d0ffcf8f063317a275fea8d908ae55e56e0d5c6b34. 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/RUAH62500399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978fc1501dc4efaebf98b7eafd467ede219b07442388516f4aa10af1eecba693. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RUAGT2457709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbb0d295500f1047483030c1e975d68001e76e20b59dc11dc88a22ecb612c2f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCABW1461508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d75c58e0e9ea63ccc41abe69d2ab2d1df621f3f5a9ed5e5e2ebd4bdc16052d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM4TW2022359.
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