Jonathan Jacob Walker (born September 17, 1985) is an American musician, singer, songwriter, and record producer. Formerly the bassist of Panic! at the Disco, Walker was also the guitarist and co-voca
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 0xa9f4b3adb6cc316d24f166a87a3f6ea94e821a4d97d5640ca8804cb912ca1aaa. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecef7491-6791-4335-a45f-1193f8204e24.json and https://artists.proofprofile.net/proofs/artist/ecef7491-6791-4335-a45f-1193f8204e24.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 0x247d7385bf22e02bf5d222d3be092f154b047944f161bc040b3bd0348ade60e4. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:04:47Z), 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/QZ8LD1943654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87856e8cb54a2cba6b9219d999f59d40f51adbb669ed53d7035ff3ded61f13d9. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:31:39Z), 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/QZ8LD1943655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9400a1af8c4c7ca125c73e557ca07fc8c7565af9a76dc00f075a530a0012df57. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZ8LD1943656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead12b4a022cf8553e4be6f450144a14a1777822467fdf9f564323868fc4122c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZ8LD1943658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06efd0a4d4ca882f9ba81af808937f7685312582336fd895cd4accf128263436. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:24Z), 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/QZ4JJ1847029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492fc480635407e755627e8bc86b82ae28693983455f6ede5c12f0b03ad1b250. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:50Z), 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/QZNWQ2014195.