Rachel Feinstein may refer to: Rachel Feinstein (artist) (born 1971), American artist Rachel Feinstein (comedian), American actress and stand-up comedian
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 0xaeca720b3a2d1d0cd22cb355c2dfda7b8f40089e2aad9c51733175e0239f5d57. 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/98b86906-bcbc-4165-84ec-30da0e5c662f.json and https://artists.proofprofile.net/proofs/artist/98b86906-bcbc-4165-84ec-30da0e5c662f.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 0xcf787e32d53bd82b76983df2a176172f2a4308297ca29fd566eb88ce51858733. 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/US85P1112301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b7d6233cc23221955bd263abcb03fbc5f741740684a31e209eb1b0bca0ab66. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/US85P1112304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5269ce02492fd43f06647a19fd86cc0c79aa3c7a734beae041a1ec97621b8dc. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/US85P1112305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4d3ed9075f4fbfa41c13bc6c38b2b13effcac4ceefc835707b1ccaf72addc1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US85P1112306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0375eae2b69bdb9377d60ca80d8b4c537022ac6c5b867fe2e4e33976bde694. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/US85P1112307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bada26299d78b17358a4b50fb35a71b49b3bd29c949e70b474b82f28fc765ad. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/US85P1112308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6749d4322006106f47b0ed4c405cdae9d98c2ad4c8ce19bf63da7ed7508cfa3b. 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/US85P1112310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c47f290f970c102cc1ff21e44f9e10e9ebbf8173f03096a828d47a1ba5874b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/US85P1112311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79e6d283c296ddb9abdd792a60bce67b4a50763c80ec4fbaa82a4afdc1c05b3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/US85P1112313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dd5bd3d1fc6facad68f91a30b4467da6f7280b83b56b8711e2b9befed0bc3c. 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/US85P1112314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67f51cb2f9448f85eec117e6772a1e0ad5f8a6445c28fd6ad95bdf909a91588. 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/US85P1112315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab2f44811e840fceb3fa7f156a9596e7bcfd079ddd17b7a08413c8ed143c15. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US85P1625602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e6e5a4e5c9432d202f35e74f4efed43f5b767b0031b26cd65c22d94cb93f05. 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/US85P1625607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589f9bd943c1ebf0bb9dbe7b29c96f23ed4baf2055192936c8c11ff48bf16cbd. 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/US85P1625611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d10b31506663e107f82dd66b6c8b31dca69e635893c367e66b9a4d74b60db7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/US85P1625615.