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 0x2d783fa4ff85029446ebe580617816a07979b3f937aa3753b54cb62ecc80d761. 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/25de4dbd-c062-4f34-9921-466aedd7cd38.json and https://artists.proofprofile.net/proofs/artist/25de4dbd-c062-4f34-9921-466aedd7cd38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Wanna Dance with Somebody (Who Loves Me)
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 0x217c24b545e924336457d8f1eaa6b58c5d2cac64a8e193735c31a276f301a100. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NLZ541900614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdc32fbfcbdceaabb482a0330cbc7386760d55ecd09c558abce6bfd702594e5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEWM91910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43467cf900768b16df10186fd3d00e644edd03216110a287c9669714fa03e7af. 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/DEN062002749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26d90a3fdb02b21c507afb08ec0acf52da32d792e356d1e53fdef3a9ae3d7dd. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:02Z), 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/GBHAD2002311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1deab435763f80a3c9eef166fd53d183b59ab06444db6a6e540b1ef44076d84a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEWM92100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69beb67779708701992ce2a9042599b738f2b5cbf2b697e0e972051e6eebf06b. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:23:59Z), 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/ZZOPM2107409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884e240d22b9a46a7857d5bd5f4892888bd3d20ab1b2d3b15cf3b47c47ed0273. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/DEWM92100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddedf40950ab3f374851d69311f18e0a3bef0f355ce68b5608bb4760d97cc317. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEWM92200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd175e684dc04a1cb5bd3735ffbcc8d09a844769bd7834976eb3b3635d0df0587. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEXN92383542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e357e914b6051a2353df88c31080e16a8f4b86d2fe3b1b8e250409ec21c25d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NL7RT2300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef152ee72a9525d3185e3ed28c5c10db6c676f7f2bd419bde5dbaed40440420. 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/DEXO42335990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dd8e1d76c38f441613c03f6d0121a2402182ba298362c2fca8539208cde6fa. 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/DEXO42354013.
I Wanna Dance With Somebody (Who Loves Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2f1bb4dc7b346bca081dab7a378eee409124f40ddfba218946f4cb3db7cb27. 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/DEN061700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ef57e973095f947fa7b8bfd6f8e2fc9709f80c57a4d89c00188521631cc594. 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/DEUE12424282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef152ee72a9525d3185e3ed28c5c10db6c676f7f2bd419bde5dbaed40440420. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DEXO42335990.