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 0x8ac8222c0c3583de81ca74f3dae897120897f01c0fb0ef550e9a8f0eb7ff71ad. 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/e0b193de-c5c5-4fbc-9904-9df57cc94e30.json and https://artists.proofprofile.net/proofs/artist/e0b193de-c5c5-4fbc-9904-9df57cc94e30.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 0x6b6a70a5c272704fa48b03b7ef99e5c8c2fa85a676fda1bbe38fb27c657d5dd1. 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/TR0110500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f02954bc018a2717c00eb58d9e6debff44b30ad31352d9934079cb3bb505acd. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TR0110500263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1266fb7b06df12dc4aa838e296d530c1c5c6f24ee69d32c4b7609c6030be592f. 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/TR3141500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc7a766e22a66595b050245a7b701a848ddd9c439043825990414c005d7f4bd. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TR0441312101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618bfce35b984cf5d333730de50a409a6ad6a3122735ffb6309fbd8cfdc8a84b. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/TR3141500271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1266fb7b06df12dc4aa838e296d530c1c5c6f24ee69d32c4b7609c6030be592f. 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/TR3141500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d714e90e2684de573e8a2c557a4a09c33610f458bba78e8a6b4c76bb9ff4a1c. 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/TRBDY1913401.
Bana Yarın Sor (2020 Model: Murathan Mungan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a33a80234b949a7d606a065eb0fe21087b4df14aa19fb5a1fa4968b8daffc7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:36Z), 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/TRAKF1625328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f073f38d2ef121e4a5ff416f2255866d24b3a63853953c65b908529147da89f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TRAKF1626139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fe0faae17f92f62f38b99e4ee56f3a1fd7b6745a9cd050044c82c7bb104d8d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TRAKF1626742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996046b37e47a6d7a3ac2e05688b577faf6aa303e279a09495f56767b61d7d0c. 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/TRAKF1626767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbe1266db114019059cffe695cee04fc39385e7d64a432b01a36c5062c55f31. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR0441210709.
Bana Yarın Sor - 2020 Model: Murathan Mungan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59b8e1cfa33b7ec0788aa650caf05c4b91629ed5a1bb51d220b3f8b53b86533. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TRBDY2020716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f0e296909aa4d28168b652acd9cf613b8b84c1af1c2b80888ede02d4fde0d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR6160800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b779f14a9cb51747902cd86c6944f55175250c57191f3aa229e4bad35c5255. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TR0362000116.
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 0x8444e1c684455ee641aec0ebc53a9e1ddeb491cc4f46412d20a9abac10944e24. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TRAJS1500325.