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 0x482553f69153b194cf48d8579751f0c78a4e4dc3a71a7f38073c0aff88a955e9. 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/e2835127-c218-4b54-8866-10e95af450bd.json and https://artists.proofprofile.net/proofs/artist/e2835127-c218-4b54-8866-10e95af450bd.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 0x20ef31ae7deb1b650d861f94239d8968a1b71e3746876db369de501ce8f6bdc5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TR0391200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1036a724441104ea1e92b5ce37a246ff6140d5854defce4b7898258d84a6add. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/TR0391200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce72a914b7c1a576bb863292ccc3c31f93e2ccaf14c5ccd72a29d51d924a184a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TR0391200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfe93b878b7b7e6611ba326a1b3fa087f5cbcf80cb1eac61343b4f05e14d34. 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/TR0391200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe245261b311ea27bfc37d918cc813f2541ce65eeec91305e3132ead61c790408. 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/TR0391200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d05813c863a25443587069e349950e73fce165c98c9ea210e486b2b88ab2829. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/TR0391200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1caf72e4a88c6c379f51bf3c3b141bb3d29ddb8896131438a07bb1013759f31. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TR0391200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d20ebd0f41c5b7bc7208bba04fc01b11d56490317cab0dfcf8e29a16027cd95. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TR0391200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f7d56db72fe2c46edf48c4cbaec64746456feb83f32b224d233723c97eaf9c. 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/TR0391200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1036a724441104ea1e92b5ce37a246ff6140d5854defce4b7898258d84a6add. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/TR0391200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eee26b277c8a75292f740b5f4f671d073b60a4fce07695966fc8bdaa42fdac. 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/TR0391200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe245261b311ea27bfc37d918cc813f2541ce65eeec91305e3132ead61c790408. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TR0391200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d05813c863a25443587069e349950e73fce165c98c9ea210e486b2b88ab2829. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TR0391200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1caf72e4a88c6c379f51bf3c3b141bb3d29ddb8896131438a07bb1013759f31. 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/TR0391200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1510e34a7165690c08f185cd1806581ce24f946baed4af96c6727f1ae70a07. 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/TR0391500223.
Düştüm Ben Yollara (feat. Volga Tamöz) - Mahmut Orhan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02b30c3a607003e6a5bc42cf6e205d65f6d4b3734aa4c03fbb623f3ed4541e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0211500660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90061152ab4350bef4c6a6343a1946aec21d118cd496303cebfa98dda433cc25. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEBL61153744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd461534b711eaa3abb7601efb3465850f38b98bfabc1bc193a13a023b2926. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0011600974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f22ab68fe89ebc9512a03821c790caa4a63be376919759637a4b154532a1a0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0391500212.