John or Johnny King may refer to: Academics John Edward King (1858–1939), English author and headmaster John E. King (1913–2008), American educator and academic administrator John G. King (physicist)
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cbee1b23a2d5b7c91f56fa141cbabf79ba34fe6a11de29cc456e8ce64f5860. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56bacd30-2f49-4027-ab04-a2d10c45005d.json and https://artists.proofprofile.net/proofs/artist/56bacd30-2f49-4027-ab04-a2d10c45005d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
H.M.S. Pinafore, Act I: Glee. A British Tar
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e180a166f83e5c51fcf44d0fc9cf508df97550852954224207f618db912af5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USTE10718374.
H.M.S. Pinafore, Act I: Finale. Can I Survive This Overbearing?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9831d1541f8086cecb2b577ea8b6bf158c89e4d3d5daced77f492e6a13f3b52d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USTE10720374.
H.M.S. Pinafore, Act II: Finale. O Joy, Oh Rapture Unforeseen!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e06b78261a54413b41dfe86e84ec5c11b98b2a1d6647250efe6790e6c376bd2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USTE10730374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24d9689ee7f75fdb910af8ac49b844f0d3c3382b0280a1e6d911b3951e60262. 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/USVPR9906018.