Blair is a Scots-English-language name of Scottish Gaelic origin. The surname is derived from any of the numerous places in Scotland called Blair, derived from the Scottish Gaelic blàr, meaning "plai
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 0x03a4a3c9d2634bb723d1ec7bb068aacb28b64b1ddd34727725c1e96ddd00f2d5. 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/8972613a-4065-4feb-b736-7bdc4c939626.json and https://artists.proofprofile.net/proofs/artist/8972613a-4065-4feb-b736-7bdc4c939626.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 0xc51f6436251c4bafac06fdcda672c41b57dab7a8eddc2a22b1816c1f662df012. 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/QZHZ41915199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ed7c50f0c3750795ff496a88817b05bfbe9c120ed5f7deaea4d091ee93cb6c. 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/QZGLM2204849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0559b29525c45e931494991eba865f8bc4e0570ca93f5635df116416816cf214. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9K2298352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c423813a0404325d8cbd7247aa135aa0486392079fef9e70e2e8c208feee235. 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/DGA072305570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049f5928bb57cdc61c7afd5e6e309033c0b1f65975d97d3bc299eea6435fd756. 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/DGA092350494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69caf9a2ae333414592b968d3e15d91ddea6924a12297f3173f3fb603ba18deb. 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/ARF102500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b097db6ea4369997490654cd39cbf5aab5f5423b0c136fcdc21d9fdcd1351c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/ARF102500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641b08dad9a3fba2edbaf2b25513decb7f322e52463a61a3212615d01b9b8ab2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ARF102500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79888fbde67f6f80d2db7cc4e61b36844eb793484dd167bf18c75dd5f6a3e85. 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/ARF102500170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64545d187ebb629d042e93113a2a914c0d32970282b0cafafd51893a84d3efa7. 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/ARF102500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edc412a4784bb9cf04c577618ebd77036b01d57f0548a6d3242aa7affe65f2d. 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/ARF102500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4bd572f86eb1360a9671ef97033da9cc1a8f2d5b5b8205dfc4358aed71e040. 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/ARF102500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bd60269fd8ced9802a4d00c810bc4c1abd5c9283304a8f020146fa30080e26. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARF102500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ee4bac240f995bce27c4a76a1a176aede09f96b119d21d4f72a4bd5a342d73. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ARF102500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d9fcac213e8171cf2809567f5c30cdb02fdc11caed3bb936dcc60064bac129. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ARF102500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169a31ecfc7c7fd368da6e8194625216ec88868477ea1893f772b4b31d0d2079. 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/ARF102500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce7b59ac3703d2145343e71dace6989c3b769441f3f127834fb87998bdc2be1. 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/ARF102500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df1658031e7a61da41d8bc4af8f4a51d4cd9318cadd397450705c068e1749a3. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/AR8TN2000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0156bb84a179a5d08cc15e48158a4fc7e271a2f03ca0ab5ca941a90134a5af17. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLFP2129838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe318b53abfebea3f26bb6eb036f5c3300861c62ec7e0e77eb173ca43520738d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF112300208.