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 0xf375c70326ba38a00ae38ad4888f867d7c69d72933f3079be85894f2dd269fd9. 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/10f0dd54-e1b6-4c75-9e8d-3801c8ed3b2c.json and https://artists.proofprofile.net/proofs/artist/10f0dd54-e1b6-4c75-9e8d-3801c8ed3b2c.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 0x7095c9145b0dc12d30369a08a8469df924afde96f3440ae0d9b14b73def441a0. 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/FR96X2279601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9397edee60efc16a0da259d0a1e6eaaafa7217b3f10eb6e16604ec11e75f742d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR96X2279280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e67aa822ad526a4f9b1b55bfc15675d48fa5044426142a0545efe456e926f21. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/FR96X2279281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb78f56af51ab67ace4df5672670bf289dc2bf15bad570194927d01fc5813a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRX452211683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c944d3196ce3441a058bdbe05cba7c1f4340f3d45d2756ecbe13afe81a5bc. 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/FRX452267038.
Diyarbekir Yoluna Le [2022 (Düğün Kaydı)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024bb25f28d7121233bd9070cea8f50daca94a152c1596629329ee79fad71cc9. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTAW2251141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bf55071ac7bb2d9a605759d29a1141162f652d57123785925df4ef7695f0d6. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZTBA2367028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8bd5a9139cc1110a78532eba79490dade61fc80069324c226fbf1f13ec9872. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZTBA2367029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b4ed2b310facdd78a9887dc1b0aa77aa8663316fa2ab119824086c422f026. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZFYZ2475471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11ada96edf8dd2c0e358f20d2b62cfea31ea1b21f66f84186ab78ca57475b91. 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/FRX202535897.
Hatim Mala We / Seçme Halay Şarkılar / Delilo Halay Vip
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe200afa4a1304e221d54526b65e1c3411234079726a591f86af76ede2e9f564. 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/DGA052501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663370ab648be8377d955fa5976868a5df1d1d0aff0044955f3b577b04d1537b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DGA052501122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09640cf302688734fb5bf8c72a0c275259867fe5cd06189df13e6e5859af6a75. 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/FRX872597665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8a16406c3b1dcfa9aa1d7c756689e381cb325dd29f9d198d3b44f1a4f380e7. 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/DGA052501016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee53891596de1140fc9d113f17b2cd31d03847aa047c2e038f9a90f9dc379a08. 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/DGA052501017.