Farmer Boys may refer to: In food: Farmer Boys (fast casual chain), an American fast casual restaurant chain In music: Farmer Boys (band), a German metal band The Farmer's Boys, a British band
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 0x166636698968982e7049528e7c7af4d1ebef486c37e53d74dd8d004ce1f83903. 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/3a511ca8-0167-440a-802f-a105ef2fd081.json and https://artists.proofprofile.net/proofs/artist/3a511ca8-0167-440a-802f-a105ef2fd081.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 0x01ad00480bcd92a9fe6bdec668a2e44fc04356d856fedf7109f18c3548b3cfe8. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/DEN120002994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6add4e935cef0352820a21b8bd15631e9bfa17fd4956069d3d486707d403221f. 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/DEN120001532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86c898a9bde09f12a9ca3623644a5be373a467c5f0377df92b583d2b9bc47cd. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEN120001533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe363be3160d599c5a59e27699664fc68e8274a4b3b8747a1a5127deaabf6d9f5. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEN120001534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d363efcee9d3f519a62cc4944e2bef2fde43a3c09146c24913657a89a39e18. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEN120001535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00162e1e27796ee69ef6f071e45e6798b140ee091e4ea5e6dda5271b7267ef4d. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/DEN120001537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13c9cf3f1d7245693fba6768ee9076eda621fc98c7a5664da9b4c33c9fc5375. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEN120002997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983798b9020a8ef2d4a08699071f9a01ff0aae42e2a1e370c86c671af05b9134. 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/DED830370202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7118d62003a5bebb7e248204deafe5c8da4c57b3838053e27a5ff50edc031b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DED831801088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b5b932a3d5c1691a5e42cabb1b72438ea8d83487c2de80eb2d7e2bb84606d1. 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/DED831801089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6138f1fa8833d533da799a0f072f49ab15523404e8c6c9ad5f2cab787d310415. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DED831801090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80ec931de44250c10eee5331e558af128dc662a5263d28cec15150ebc092082. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/DED831801091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe53e1bbf95ef212a1082486252c93d76add919a392792ae5524c94506289c8. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DED831801092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15070c1fb288a8684ecb52c51f34f4cd18f4c3196d1ec67d8cc520b5edda13a7. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DED831801097.