Justin King may refer to: Justin King (businessman) (born 1961), former CEO of J Sainsbury plc Justin King (guitarist) (born 1980), American musician and artist Justin King (American football) (born
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 0x8b5579979c1b459d005b8bdb3127b41401a8fcd6fbe775c213eb62e221f7b4ff. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7545ae54-c177-482f-b1d6-8fa00f2ce89c.json and https://artists.proofprofile.net/proofs/artist/7545ae54-c177-482f-b1d6-8fa00f2ce89c.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 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 0xea14c35175b7cd88b40b1c0e8cd93d536b25ae9def976dea15bb0565a7f03bef. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USX9P0690981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441503a4bf3a26e8d819a7a6b95357972d351b395f5b9295efe8e2a098d25c2f. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USX9P0690985.
Re Bleu: The Raging Family Le Bleu Remix
Short and Beautiful: A Song for Priscilla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e267451172bf02cb62d7386c9088e132a4041e9c1db0fa774ce49ee3ea4626. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUUM71800457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a393e53cfa0f904ebf005f7528e9a2553b7777dcdcc0a0ce2bfc47894abb105. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CA5KR2004702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0154d2eb843a1a96ab519dfaef7afd520ec5635d5c0ee1cc65d0345f4202f1ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1835330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cb66c1a5aff8e207d43d6397b7e7c0754a06eb8c265cc702ba3f33eada3d73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM2PV1835331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3828fb90a5d916d0db919e21e0d8f5565b06beaae03c51c52f8a6c0373f01812. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM91765914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b4c47fed8edf0104d9a1541f91fc68a4676f9c3ef7d33aff945648a1ca4dfc. 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/USHM91765915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5f14b1356abb71fbd4e5ae773900fdbe2c56e24228e146268d19e8f7d5f802. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM91765916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8326c18b950f8dab72a11dc42b4f3811b1a0187ff8b823789455eca7b67e73d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM91765917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f2f7b903f1f952f7281ffaba3238fb473ba7fc1bd1bf5f374be25400cdc5ec. 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/USHM91765918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f633b463fbd0b59cfd72523a3efd69dab427d6dcdb9d7c5047ec69e0e3c65e. 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/USHM91765919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac795d939b0f32f23e253136c91956cae44fc77d5966d0ca466bbe5ae8bd22c. 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/USHM91765920.