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 0x56206ff67b804c3fd8a433b5cdb178102e4fa862340a7399b2affae774d2d1b0. 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/b9cb9edd-89df-48d1-beb2-f9ebdc5338ff.json and https://artists.proofprofile.net/proofs/artist/b9cb9edd-89df-48d1-beb2-f9ebdc5338ff.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 0xce98d6c103ae7c5d230592fa2b9644b0864625071296296500b78e2f1ffeeda2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USTCB0991979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4775f7e489b80821a147a90a43bbbc73b29586ca4bfe4597fbdec4d040459bf3. Chain 2 (Bitcoin): anchored in block 957626 (2026-07-11T23:22:04Z), 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/USSM19502216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b3e10dc68f3160ba0646c8583c70739589ae2189b15ed2810448d8e493768. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USSM19502217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373a720f261b99efe421e321f16b46378a630ae36064a9fc1ea204b3b6a72ab5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/USSM19502218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6144d0360467a6bc9dafeb81ec8af3281ab86a481956d17610b72134b6e2b. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USSM19502219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981a70b22504842f8e67c31b1dfbe6271a2fa0b3269cde208a77958990d1c6d8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USSM19502220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66bf5ab5569154644395e02e8c58821c03171d82851f79c5c6e8663686b1853. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USSM19504424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce8ed4c0e761242dbee57e2a25231497c162e2ee04d0cd8873bb06211a6db55. 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/USSM19502223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb44563565d65806e63f74ed1c314a2394bc51bd771d2dcf8f1bfc80d641a20. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM19502224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7f25971216359bef5a61ad56cd4669301325887bce17db0819f1cc22fc90e9. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USSM19502225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421334f7fb7fa1e444e7327970bbbee7d9a28ed14078c3bd216a58678452ba4a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USSM19502226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fff3272c340e0f549612019849e3d9b4e364a76a6519115a1ee2a729cb6d4. 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/USTCB0997420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62465da95dfdb9da9f50d25e7f0ef855f77f3b59cf18a88c8b22361eb490b0ff. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USTCB0997421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07fffda3748917bdf40dfbdb8ae43bbcacd412d70eca12b5a88036ab9bc1044. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USSM19702809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b40de98cdedb50f6a636a260e0fc096bfbeeabbc3836e24938cc83c978a359. 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/USSM19702810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567a75ef398611bc70d47715f7658ed2466eb8cc8e37c3609311dc23ceaf3ce4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSM19702811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004bc21524aa7ece9425656665764bae63b066cca8cecdc6219c9397dce07d40. 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/USSM19702813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049d6063fc61c6832a63dd07b85c068dac43b8593d7b838eac4b061a16a48257. 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/USSM19702814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2d62835842068a9d16b08148e02c008f57e2a0623b353ca5b65d34ad8ba35f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USSM19702815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e607dd221564125b176a55f36e650fdaf37e6c5ccaa16514b4551ab373fffe. 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/USSM19702817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b40de98cdedb50f6a636a260e0fc096bfbeeabbc3836e24938cc83c978a359. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/USSM19702810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567a75ef398611bc70d47715f7658ed2466eb8cc8e37c3609311dc23ceaf3ce4. 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/USSM19702811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004bc21524aa7ece9425656665764bae63b066cca8cecdc6219c9397dce07d40. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USSM19702813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049d6063fc61c6832a63dd07b85c068dac43b8593d7b838eac4b061a16a48257. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USSM19702814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2d62835842068a9d16b08148e02c008f57e2a0623b353ca5b65d34ad8ba35f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSM19702815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4d1cd7af7ae531ef7e2b4d2f7eb025e9216804d6725f693dbdc9c9f63b6660. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USSM19702816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d40bffe2e8cdc8310a82c209353384b22b4d2f9ec14069526ff2781bc2025c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USSM19702818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f76d0fc4512f68a10094b37faaa4b9636c2faaf52addabad4242fe57346b54. 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/USSM19702819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e72d8061e86727e09f9582499f777f9bcf79f9c3b3ab06f244c6c8f0b2feb2. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/USSM19702820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2af6e4df66d2fce777fff9576c4a49445ba1ac57b007b155b00cea45055ed0. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/USTCD1057664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419b503ab2789b13b7fb52e91a0330b12a0111f8c1f70823c529777a9fe2de07. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USTCD1057665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d45bdb090caeecee25862d411dd87151f91f36494b2e1bcc84e45d2baf4f6c. 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/USTCD1057667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dac6d076fd40b8b9a012b50119c31355b6ff299fa0945a42e7198ba83f87be0. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USTCD1057669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977d1fb54cf0d6f8cb93c7a5b9b358d39ccec71077a4832fbfb42b213dbedba2. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USTCD1057674.