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 0x10cb4c8d084ae450b091dbef58b73d8d705e8624c031bab38573f26be1819e3e. 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/4ab76edb-1f09-43a7-ac03-f510b86c0ec5.json and https://artists.proofprofile.net/proofs/artist/4ab76edb-1f09-43a7-ac03-f510b86c0ec5.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 0x7f47e10594fa455a144fddb05656865764041bca1b2974a8075a882e7bdf7883. 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/ES71G2412055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e66ee63b41c3ca7bcbfc20ea7ee7063ec1ae347119b873b530f74544da63da. 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/BK4DA2315636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc271839455a604484b8ee1ffe97c153f45a852ccfd6e92672f50146be714a181. 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/ES71G2216322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbc53132c7161a13c1cec231f829a149142cfffb71abed023c36cd0186a5876. 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/GBLFP2228051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaa8a11897787c2823e03b0193143939ea50c61092f8534a1a3d57126a9db10. 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/GBLFP2292357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbc53132c7161a13c1cec231f829a149142cfffb71abed023c36cd0186a5876. 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/GBLFP2228051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b835edfc180785abd29d116ce614bc9006b62bdd6737c2a260f0e6e226b5d76. 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/ES71G2016953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9926fd0d30de5352a3910219d95c23b3b2a6e80dbca22bfe18df2bab827af1c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2306732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc995deca6df80757a7901811634872332070a84a3894b2d9573346faaa7a12c8. 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/QZNWW2292005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61d7030e1403b0086c5df5ae37e974f2f5c3442f8b8ac498bcd17163d86153a. 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/ES71G2338848.
DEATH ROW II - J.Moods & Kas Rules' Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63e447e55e1201921701e1f5b3984136ce1359c3f3edbce0a6453aff51d540c. 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/ES71G2338850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdb44288090ca088f7c51747f655c2b2efe1fd5b9d9d9808a7369c847361f71. 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/ES71G2338847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c5e11456eb1d636bb3fa7aae2fb73c97642bdc9036b29a758a65d4de989313. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2338851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26667a0434ea7399cff5c52004d12deefdba317bec55749944e5f61a3dbe585. 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/ES71G2335238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf01cb2a13fe16ce12ea013c75914825581f18b1b746332c2e14c38bb69baf13. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2338849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abdef2cbd8d88df168120fddd163bc169d7260155788cb8f3a4cc3f6b718260. 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/ES71G2335239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4c0368f329595c4735b20efaaf2bc3e9ef2fb5aaebbdb0eb212d2ecde5afc. 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/ES71G2335237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa608bf1531d61ef759d1b78df0c5a9c7ee43c2b483eacfbf9cb7a2df61c0ba1b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES71G2335240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26667a0434ea7399cff5c52004d12deefdba317bec55749944e5f61a3dbe585. 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/ES71G2335238.