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 0x475f2a59cc57e0dd4a2b3570496d1593989d056bab794395e4040dc344a94722. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c24e1ab-5d70-43b0-8f95-42a518a22faa.json and https://artists.proofprofile.net/proofs/artist/5c24e1ab-5d70-43b0-8f95-42a518a22faa.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 0x9a482cc87d26cb2761ebfd34d54af659776431299e5182c0f1e6e6aa434683ab. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:21:57Z), 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/QZMEN2188409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5468175096235f21ed90d0772901beafe7cfbaabe395e03fa25e3ee97dd6452. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CAN112200606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77bc4bac5037815c84a7f80213e8fef68724bd701fd81f69e577882622c8381. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:04:47Z), 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/CAN112300459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0554a364551c69bc5c71bfd8cfd6ff173f2c042d3aad841a3c5461950063f9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:07:04Z), 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/QZTBC2330921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9ddf44da81b3341524e91de904f8aa4a1eb5489f8cbffc988c3d4c4a528244. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZPEW2512598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00ea4d09fc74af28dc75120c90239917d94ec67689523c92de3e052a1fd8801. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZPEW2529032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1845986e7ab6c72aaa2bf50402007717585d5487f3da425b5323fe69642bb98. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZVEM2547581.
Don't Hate Me (feat. nobody likes you pat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38262df65353eb743b0827d136b3de631bcdcae0c3423a9ec68a7f638b20418. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:53:42Z), 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/KRNAR2354515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38262df65353eb743b0827d136b3de631bcdcae0c3423a9ec68a7f638b20418. 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/KRNAR2354515.
Winter Blossom (feat. Ashley Alisha & nobody likes you pat) - Sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a6bc2e410d6fc2fd37ee4e2eb087a5e078aea4f7b75e56924010d9c7c2b24. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRNAR2371113.
Don't Hate Me (feat. nobody likes you pat) - Sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5ced946fea7051843947cd055365865a301663a7799c861bcd3cd4dfa6fa98. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/KRNAR2354517.
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
Winter Blossom (feat. Ashley Alisha & nobody likes you pat) - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194999785227c0d5d4dab7b320a8fc230b0dc3b9f7f8d9d5d9ed6bf4a76cb99c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRNAR2371114.