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 0x523c2ac1d31e4e0f9e8600daf9c9e03127bae057b9ccc8f3f4884e9e1243493c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/524155d5-ed7e-4d30-9757-e123dbc19726.json and https://artists.proofprofile.net/proofs/artist/524155d5-ed7e-4d30-9757-e123dbc19726.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 0xcfa1eae4f1a19b45e11a9a921c54cb66615420dea5dd252ef0d7ffa9903bf109. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/US83Z1774686.
Nae:Tek Pres. 3 Years of Dub Techno, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d4c4df5ddc90c636eb3e5fa827208bfea436f5b420b9ac7ea40744f494ed29. 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/DEH742156798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98495e1632a47cfbebbf53b6359b740f06c24497833b415fec429f831af87c74. 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/DEH742034153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b46bb5f0eb55bd3d7c4dde0df795fb9cc6ddc6b200a90221b5aa20dc65037. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEH742034156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1598072bbb1c9fb0dde5b6e8b40719b23f4cf4e97296d31636d8e99f03bf79e9. 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/DEH742034166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c9e4c7fb43ae0104cae0dcc83ab124630c8748dcbaba80eae575e1a43b8797. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEH742032254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaddc1c132c42be0aec3739d36f795eadd39afdd89e7d523bcacb1f49f1ff145. 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/GBKQU2053169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f2989029b176b00e8a7fb7b1859970f4aac4429f51d2c7f23474352ec4627d. 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/DEH742032190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4456aef49c2369d73087abf4dd84c598c95185d6e51ac1f1bfd8f8d61738b0. 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/GBKQU2053152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059c9c75431a94b42f4c0cce1ac670f62f72a9bae042d5b89ed302c7821fc89b. 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/DEH742100545.
Treasures From The Park - Compiled by Mig Madiq
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0036b0610e95d56925e70ed7b4038d9e6ed38bf9efb3a8f637216e9d96e7cfcc. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US83Z2430303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f8f6f426a659156c8fe3e950af2b15cd8648b63c175f3f535e4afe0aed6f67. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z2421232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5698cd158345314237fc1bb41ee9c68fb526ada7ae690d652992f044f1848ee7. 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/US83Z2421298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f31122fa83cb4ed32bbe0f8d1e1e43394e92308689ab80cc1e41ca9815c1eb8. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US83Z2421302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe3ec61bb77fbce22d2192ddb818632aa81949defb6e5ca59a75c63419a7608. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US83Z2421292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35eebb6c4246c580148261bc0f9294bdbd0b9fa9ee471c5d179a4a7d018647ed. 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/US83Z2421296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8b89ec28803ae7e126241e331a9ee55f3417cf82da90b58b128decca042ee8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/US83Z2421291.