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 0x2ca2e81e31c006bf854bef5c4f6e22761aacb16d9f323a1a7c9ac22cb2e5a3da. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcc695f9-9132-4d84-b220-db4935439c47.json and https://artists.proofprofile.net/proofs/artist/bcc695f9-9132-4d84-b220-db4935439c47.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 0xd933f397554f9c6ccb39dd5ecd7bed9f4ff534275cdcd5f99b0e961bf8d3b8ca. 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/TR0151601084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac3ed6004dbe20d19c619cb4e2d7ddb08dc597fbe4b82747e81aa7303e51240. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TR0151601082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f385840b94acb7dcda08c7c1efacfb0f0134b33aad45592b154e9b74fe3aa66. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TR0151601083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e1c7a382db888866de01c1672a628d770789eeda5316ae8ccd21ba9c4a0d9. 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/TR0151601086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc41068ebcbb4e059201c258c4f6d98b5cc25238d45decf9d8ab8d6f33b79d6f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TR0151601088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77ab3a32180fcb748f9f53ff1eb882be56b88f76054b04774207972faefa9c0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TR0151601089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fc1fdc1778bc4fb7218bb8dc11e3829feac2eec99451729042042e70a9329e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TR0151601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae20d9e9ade8dfaaac91999e2371c40536619426d72dabf11fad2940f8aeb1. 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/TRBIV1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd7159f56ec3749719e7bdc19f2cb579710b16cbe2bf5b2fda1f12f73ac551. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:30:46Z), 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/TRBIV1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe112f5cdc13d10b61f5927f5269ace9f4dce16650d32017ee3b87150ed46e3d9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:45Z), 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/TRBIV1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e4f941a7ef5d1d569cd52e3c353cc7bdb4c0ae7f0d20dd7c066915bda5e71b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TRBIV1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a16e2062c557bdb1bd410d47011f93c3401e81220fb9ded15e7ae4a692e8a1f. 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/TRBIV1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24ce672300dfa36487c00a2c5e550bb837abaadbecfdd6b871f38c7c3221131. 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/TRBIV2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87650a357c60d9813aa3a272f28b8b5034eef0fcdf4046b56414ebd0b42d9967. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:08:50Z), 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/TRBIV2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8add5b5691ffb3b1e4b0f0b7442d000b234b08f7931eee7a058c586adfcd8b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TRBIV2300004.
Yine Arzuladım Bizim Elleri (Aşık Haşimi'ye Saygı Albümü)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74748748672c893d86df28856886d751213b1a565c8a95a71e8c50da7e7af3d4. 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/TRBIV2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b336ffc7323ccb73430c2bd4fce3cff94c419d9aac8bb24eed3135d33ca12be. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TRBIV2400034.
Ekberi Türküleri (Gönül Dostları Dilinden)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e05b0f280043a3e8041e4fc21c0978a157b6803b6abdda9bf5380bca9df129. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TR2341900302.
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