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 0x2848c6c67ef94e269fe7c1e06db571b5416b917f2e116ab6bfb19200abb182fb. 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/26f29947-65b3-46f0-95c5-4fedbd91b9d4.json and https://artists.proofprofile.net/proofs/artist/26f29947-65b3-46f0-95c5-4fedbd91b9d4.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 0x205c6c3f384328f53613eac32bda1c84bc51a6521b60f380f089be3dd38dd5fd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCJPQ2139693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf4082c164eeacb12cd6b666dd35dc85bdec83aa22f5c874f54d0c056b33ab. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:32Z), 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/TCJPQ2139699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9808cbcfdf3179a3a1ed9ef19913a0d009bb3eac01801e57bf4408fcef84260. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TCJPQ2139587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eced451bcd03c24392e62f44a5f4604e39585697cda1117c15dede52534761. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCJPQ2139712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b259393af2e47f6d17beeec198922497e5bb243336d78b863298096d541458. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPQ2139704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d3687fa922236d272acf30da8cd0823d1dd203af10720fdf9a2fdb3df6cc0a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPQ2139708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bf052e40485e4185b8f1aaa5d98e3b7472533b2cae5bc372394209caa6f12f. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/TCJPQ2153301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f7290b21a42663c034cbb87f72f222fa01489559523187d92d499e1df5f913. 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/TCJPQ2153304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b56240d33535df83768bbe06f8dc1686779ec0c1888b22a419ab05ce6de71d6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCJPZ2431425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0273206d7a4505dda4f725a9d297f243f6245f30b18bb093c523a97c5dd399c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:39:45Z), 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/TCJPZ2431412.
Melt Chocolate "Butterfly" Broken Daughter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a88014e03999d6b39cf4ad1292e6bcad0957629a394ec0fc3d12c756a161a6. 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/TCJPB2413191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0279d5cff77148c9f38891c9052cb6529273798fa9c57862796963fd7a877ca7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPB2493472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afdad5971ac55dfdf20ef36adebbd2a84b16b5d541453ebfe415efbd96d2559. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPB2493476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bdeb3e107ac9f4f31258b95843299040dae4403366de9cfa9a2267acd74f28. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:33:27Z), 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/TCJPC2495750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec2c52d25d55bd899f6b6e65d1d5c36481a22b073883b584472c32dacf98509. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPC2495757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82c5cb7dcee70dfb27b000b87651be9d7692e893a248dd33f0d910f3115deac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPC2495772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad48c9b1b88d0d495e949ce4186338817006b13e490769b22760862afee8fce9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPC2495782.