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 0x55554ad5e5de9ac64d809e19b058af4d9f89f3436c881cbca26099544e888431. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4408de6d-22b0-4fd5-bf9b-392823695301.json and https://artists.proofprofile.net/proofs/artist/4408de6d-22b0-4fd5-bf9b-392823695301.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 0x10b138cf1a505f112c426f1a500680b11b65eef4ab994823b35af31ba27c0bdd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEBY41200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e7a8422c59eccf8aa5b12180162ea68247550b01e031d7541140e1ec4077a9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAIU2443415.
Tu Tak Tu Tak Tutiyan - Elado’s Gulab Jamun Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6bb17827f6ba5d71084edc6439bd68bb27dc595689aca6e0fcfbfc0e1d31db. 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/QMXZD1100628.
Tu Tak Tu Tak Tutiyan - Elado's 4 A.M. Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4f21317ebc8206b4f1d149fc4e8de7106ed77df352ed877675a245c405fd5f. 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/QMXZD1100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6427c3e720d13140d038ae8b2366b7840452ba6e9a610f583fbc486aa3def5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBENT1654968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbe5fba1faa432aa02e7783dd42951fc59f893aa7a47beb329564dc8eb7c78d. 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/TCAHH2311846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc27c76509491790d5d4b1931e6f0e93ddb0048ee68f7f7ba4252efca91b027. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMXZD1100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51514a925f7a267fa9fa1963176ce5650081a3fe169b9d886ffe91b7d4c85c6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMXZD1100602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76bd65d1e0c4eabfec233b6cf945bafd087ab512ba4a3bd68e85f405ab48ac0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMXZD1100603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb138094ffbb998186f771f34dd89643a5493d66d47fb067f1ab33a7ce78f805f. 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/QMXZD1100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc446205a40532b097beb6f572537b1496ff5748315c15da7f0e53da89b769f5. 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/DEBY41200848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b138cf1a505f112c426f1a500680b11b65eef4ab994823b35af31ba27c0bdd. 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/DEBY41200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abb376e6d9c1d0192a82f3082c4baa7239992da2175d5d43d63ba050b7664c1. 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/ITRHE2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0403aafd147e8beb513ac373a3c7a64624e8b4492fff3388f8fc974a9b038ab2. 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/ITRHE2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08259165936e40fbbeec862c2c7bf275030d51d9451efebcfea1ce90974e9d5d. 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/ITRHE2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c2fb93ba83dbb9a479171e37ced071718065aa20704a3bc4a02afacbcd74c6. 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/DEVY92500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3b59a07963d09b73a04dd5315c359f212e769d3d808f4089c1448aa18de645. 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/DEVY92500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb5c6b68a0e00a446a53d68de699aa66b79ab36a2b54594c4178a4100ce9309. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEVY92500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f44b95dfd611dd4baf73db788806e77ecdb2cd9503b22915b2c0b08ba4a471. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEVY92500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23f78984fb0f1d1c9b5df5e76d9da3eec93f46409f0e2be6e1b72a35aa33827. 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/DEVY92500005.