{"copyright_id":"0x586b8817d1e9f38944d4afe533c2bda23748e0aaf3c7a4005a8d79f8d2b96c1e","name":"Philadelphia Percussion + Piano Project","registered_at":"2026-06-16T05:33:06Z","symbol":"NIM0952936","token_address":"0x3e1ff286eeec05fbb73aa6e8523cc1af05ffaf74","type":"artist","uuid":"2d13f7d2-01be-4f79-b1c4-e9a57e147185"}
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 0x586b8817d1e9f38944d4afe533c2bda23748e0aaf3c7a4005a8d79f8d2b96c1e. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d13f7d2-01be-4f79-b1c4-e9a57e147185.json and https://artists.proofprofile.net/proofs/artist/2d13f7d2-01be-4f79-b1c4-e9a57e147185.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Strings Attached I. Splifficated Mustard
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 0xe989c5d5f67428c5c54cc3bd7c3587daf6562dc49fe81a6a44e8e7c1e29757ac. 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/QM9A92004586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb573b59122f2fe51d66a8858fa72416f05aa1d3c1bcb7f4810eb42aa6bf22490. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM9A92004587.
No Strings Attached III. This Side of Twilight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6379177fd7b349004cbab7225aafa335e7e06e4a121aec1428787fa1b37c21. 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/QM9A92004588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9c960d2dfdf8a73ee03eb2472178fbe4c205156ed60c63f9dc000172e42b9b. 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/QM9A92004592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23da5ff35f253e32ed6290f2d77cdc5e93423c9399536688226ccf0b9f30206b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM9A92004598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc92d4b3f9a58dded9bd1a07a0f1baee1cfbe97ce65a0f01087655187b722fd. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM9A92004585.
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