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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c1cd0c70d734c77d0e93ac071c6788e2f95181ba4e1aabf33d19dea1eaca5b. 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/0c65d400-f7e4-46e3-8c8e-ff6222a3ae66.json and https://artists.proofprofile.net/proofs/artist/0c65d400-f7e4-46e3-8c8e-ff6222a3ae66.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9454032d795454fc1f216201d2672c6cc899108b5abf00aa6d6e287b6df850b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEN2403256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20acd64adae1420e097bfc29875ecdeed0a625dff33b9a7a53fa3ca13a3cfac9. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:50Z), 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/QZNWR2444093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2fc54ec4cbef9f8f180814c8518464c2fe6a5cc0a57e13d8229c4f1acfc4a5. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZNWY2419955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd133368edde8f390a8557cace11a4d6b368ea8d2666e60f59b4552e5bd2fcf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAU2429915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525ea196f05f0063a1ac9458ef9050ec88ea86b01dc6eb89aad15ef883f6e9a3. 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/QZTBF2446282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc299876dc749f1f096133748b5ba857fa4513968f47ac655d73e18f2fed788d6. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZMEM2411572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ffafe272761ce88cbbc70a03cf5a0611b7f2edfcb1f88b67eb09fcbc0ec987. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZDA62508941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae1b89530774565a0ae7a1eddc5ca909a3e45847e2d5fb7543e045efff7898a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHN42527224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4164a87dae34f66f6c575b3b46d49140fa8e34df9dd671f7094eae61a0f0a5. 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/QZK6G2579443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80497a3f1a5b1514302b8def1128beeb1013cfbffbf4329aafd54896661ebd16. 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/QZMEN2509053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4c8d8d3f062f3cd4051a41cdbf11fd498127627a34f792701ffdc947fe8d97. 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/QZMEP2553026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a996636439da3ed4acaec4e3c8bf82356225dad3e935f303f7866ddd0e312a. 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/QZRP42510659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192d7645089720d125e80f6e46eeced3f88a3b910b304cc4ad16842d7f07fab5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTB42599818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ff1bccf2a7fe9af63b7142f42abd033308f04e3a9f7d2998634c66de3e718f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZTB42599819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3620f147adcae6f2f66cf8142ed58ef443b374467b9775571901369e30dd7485. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTB42599820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bae0486ec5052e56fddbbdd6b27bcfd39efb2face81516e0da9a6650f12aaad. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZTB42599821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0005772fe4ed5c5a2fd283859e1afbfa752d0b7b99f383db0176de73f09435. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTB42599822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5868cc53fe75a665aa350bca60800b36faefbe4b79582b1cbb916f31af0f842b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB42599823.