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 0x0691571e9b54968081a1fe9a5678622a0e71dfe864095bbe25ea59fd7fdc2572. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4d6e66-4a61-4f17-ba97-e31ccb4164fd.json and https://artists.proofprofile.net/proofs/artist/7c4d6e66-4a61-4f17-ba97-e31ccb4164fd.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 0x614d9b42ef09d64f5c90d4a13e27ec206564b19acec0056574de53bcf954efdc. 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/TRA170800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5710a8a8a4392660e62f048ab1513e65146f2c09e44319b9c6e841b7bb297fb9. 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/TRA170700665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1af2ec7f5650e8553ed2fc9dd89862b3f6a2a0a175fa49f7832dddabe8060f3. 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/TRA170800702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11110eb48ad42c1c0284b23bfb6fa85a962d4844a6ca39769085f70405cc37e8. 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/TRA170700580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fdb09063d9b178b97fd219901df9cf5e9be58d186eede7ce1475c5e4e8d9a8. 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/TRA170800710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ecdc1bd1111b663c84f917d2f3ba46ebf26d9528fb3c4a9f4ae7fa88f73708. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TRA170800704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0988a52a31bb107d7a9a4fb7c9c57584f8f252b4b69dcd54558e1a64fc7a87fb. 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/TRA170800711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f11a9f26f4cf725dce8a23cae3f1f3fba6aa0b8b1514ae32d652d3f122bb2b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TRA170800705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ac6f2258e044d1feafbe8a247403266883174da08e202a4bf5c269a8cae4f. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/TRA170800703.
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 0x31580e8f1dab49c2372ef37465d10148daeeb983bbbd986b759e125821b8ab6a. 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/USX9P2386340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6226d2b8f11264acb47a0a79808ddf3f59e8b5a6922b592e9e13b1968ead5804. 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/QZK6K2071541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32b3566422c2036eac13390ffe5344ca890917877ab24fe6597ef8932067b66. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6K2071546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cf1e6694e59a076d5671eeed26729d2c64713845612e42633c489cac5ec635. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6K2071555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e215c04eafdcbc0b70fae7bc22f88dad7ca0d54e766bb5d317d28257b294a41. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZK6K2071537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebd69952f68896b9396f999d88f404130438a1224b539efdeb1fc8b5eeb2fe5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZK6K2071539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937a49d2602945313e683894e8276a7f75bebd1389c1c35cf06ccca0a46526ad. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZK6K2071542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d99fd38f6ff1dfb6dd3e369e7d06ca55d0bd49662a44713c7cfda84701d6b3a. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZK6K2071545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f3de3880162988db1987663d31363629b17bef069e89172608ec2db390a1e6. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZK6K2071549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde18d6ccb19546527f126b22cf99fb9694ca0f765b2565d605458f1437cd5e4. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/TRAVU1620025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b94e943fd59628af9cfd335abaf708d0bf0597e1bb07af6fa05898aa1f4862. 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/TRAVU1620026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e269d18a0a70b56d7010a393ff4719f3e3af42653600587c2036644d26f90d8. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TRAVU1620027.
Soltane Ghalbha (Persian Version of Holm)
Emrin Olur (Original version of Dromos Epikinynos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436d01c027ac2861e6b1348c3157691c9db97d6f5a4bdbbdf6bc9ab43f1a6201. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWV2223211.
Weily Weily (Original version of Fesupanallah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08bf067a86a3c6dacc9fe636fd1779d48fa9de8b3da86474ea9fd2c0ca2fae. 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/QZES52280493.
Chaje Sukarije - Original Version Of Olanlar Oldu Bana, Sevdim Sevilmedim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57172dfeb6ebca4b25b036a5ef9f14b9196283290cae38a4facea54e80987d2. 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/TRA162300396.
Dilenci - Original Version Of Mistaken Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd4d8cb1ee73a479183d87cb00c86e98af0e3e11e8e68c619ea5dd6fc1c4c7c. 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/TRA162300390.