Tristan (Latin/Brythonic: Drustanus; ; , Portuguese: Tristão; Spanish: Tristán), also known as Tristran or Tristram and similar names, is the folk hero of the legend of Tristan and Iseult. While escor
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 0x76b3e42fc4877f508f4bc6891d8955612cbd5cef57b9ee74e1ac4f477d4a4b91. 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/1100409c-4040-4aa9-a149-7ba7d3234604.json and https://artists.proofprofile.net/proofs/artist/1100409c-4040-4aa9-a149-7ba7d3234604.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 0x3b15618b962e72ef2c32317dad3d71eb5f633b641a1d24d37f9876962cf38aaa. 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/SGB502381195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d90a0a4de661ed95db6a0719528268d27d83cd4e23fd38e7528b3927fbcf4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTAS2352720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdaa4bdb4d5f6d5bce30ec6b36d0299aa2271646d94e8c27e6004fccc9acf4f. 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/QZWFL2364619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdaa4bdb4d5f6d5bce30ec6b36d0299aa2271646d94e8c27e6004fccc9acf4f. 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/QZWFL2364619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8f2d64d32b760f1fee1cdd401e2b8142e8e484cd0020732960fe13aa1e7af6. 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/QZTB22338103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c8d8a6ecb03cfd72b8a0ec70cfbb9c993956df9ec7813011fe337b846e5c3b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZWFN2322562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d90a0a4de661ed95db6a0719528268d27d83cd4e23fd38e7528b3927fbcf4. 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/QZTAS2352720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fc155ed4a91689798348c16254ef08069debce9c3f37f72661172f07dc5731. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZWFN2322563.
IF THE SHOE FITS, WEAR IT (ONE LAST CRY EDITION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c8d8a6ecb03cfd72b8a0ec70cfbb9c993956df9ec7813011fe337b846e5c3b. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/QZWFN2322562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888a300fa44431c7b865bfb19ee7bf238f833244ba7a11ac012c23d522f7dc78. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/QZPLS2499115.