Far or FAR may refer to: Government Federal Acquisition Regulation, US Federal Aviation Regulations, US Florida Administrative Register, US Military and paramilitary Rebel Armed Forces (Spanis
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 0xd7e9762d86e4f1babaa116b0f6b0922c1f520716266cfbfe76202bbbc9195d22. 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/b0d8dc31-e621-4fb9-8d1a-6b7c4094aab9.json and https://artists.proofprofile.net/proofs/artist/b0d8dc31-e621-4fb9-8d1a-6b7c4094aab9.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 0xfb1b5307f6d10792bb09c842aa41f537c43f48955f9fb90a1ba1761d8dad9c70. 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/QZK6P2205416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e448c702b84fcb37f05b3f43aceec6343671f08b4f9d5e03b896db897661f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZK6K2302279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb049f59df5e24bea8867d48967b61b4c41716d74d432fac3f8ea9328bc032dbc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZK6J2353774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ea50a1240d4b635969b1cbe78ae1c6a9ffa63e621f306c8a5769199da79f65. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZMEP2333512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb159f4dcb18c7eafff29c80c696431dde7d1fa1fcf959eb4f7016e8c4fc70bd2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNWV2368659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe361693a960c556d34497a5416410ed5397ef3725491d7c6139849ff9ca0a3b6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTAU2342493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c5740b582570fa6e4dad27b91ff58f232412cb9f8dedbb526e3b03e90924bd. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZTBC2355217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d96e069689e1914c65f995df10385f548e9e8ffd157390f31166d0ab9ba61af. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZDA82438930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630d60990a82c40f57eef88dddfc7f187d523e1fadcced8c9142a3916489482b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN62444878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d4b1e81ebb356f0e840688c5f700b7a7b349c98a1df4fa805a47df1fb7a135. 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/QZHN62444879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1f10e19db37f00b0d246a609834f6bee54fcad441bf020eaa6014d7aa683bc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZHN62444880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda500940229e5bf28d2ea5b06377813761ff74bb77c9bf5efca87a4bae3e5231. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZHN62444881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedad9a54dbd4cd260a6d3ed3d4c2c5eccfa8734ed5cdcb58ff6ba5aaab233f84. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZHN62444883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891a74a4cf2ab229a49c376ba0a8887b34484b57145a29dc8041179c04287f67. 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/QZHN62444884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f64887037efcf65bb26f5663d2bfc76cd83c802a7609545e134dfca711b572. 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/QZTAU2460797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fdadac9f7480d18423d90157665a5aa74d4068d017d234892c249907e796bf. 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/QZTB82461043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f5184b0115474857a41a4c18abf75195cd78f6fcbc320ab2a8078a5629d343. 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/QZFZ72556805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a13c829ef5165404494066cc523bbb01a2846a9dac53b3e10ed276f9575a81. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZES92532468.