Gregory Maxwell "Max" Kelly (5 June 1930 – 26 January 2007) was an Australian mathematician who worked on category theory. Biography Kelly was born in Bondi, New South Wales, Australia, on 5 June 193
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 0x7af9dc3ea43aa594894273046d50365d029e7f9efa27ec52d1a0dff176797f6e. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb7ab037-3488-46c3-872f-09df9342f65f.json and https://artists.proofprofile.net/proofs/artist/cb7ab037-3488-46c3-872f-09df9342f65f.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 0xd27da56a5d886eb0f729b3bc9dfeeb342700a78891e8041ca46a5a067d534c30. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AU3NQ2401018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbcc75ca8ff3b97887905b4061d5e611731e5593d458242d9ae745412efd19e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCE42400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb78bd7b5721b15def290b006cd6e988af2a7badfbd149396092179acb7d7c9. 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/AUBEC2461465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3532e04571e242aa471a981b5df175aad4b737a491a328a09b2182e869853f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWY2496719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247720317c909e59ee24bac15d5acd16ca7a30df6e81558dca6e6aa3931ad52f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNMT2438538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f6f1d655235fb30c9f510503f87cb2c05a972f1d8beccb8efd27716f0fe2bf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUMGB2401149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e1ccb8aefacc577e966ec4ab53e1a6409d14ed3717520a8448d4531edfc0f5. 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/AUGBT2402000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78d655a5b63119722654eed5de7fbfdca5e906e434d5e2b8bec088edc29cfb6. 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/QZPLR2482464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc24deae4a1fe0e4749a17e6ffa488a89b37cd3ce4dd1e67ec31cfa55e10a82. 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/QZTAX2466833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5e25885a561e47ef29183339b599aca3d9935d1b17632aaa65ee0d4ad479bf. 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/GBCE42400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604440796cb9bd3d16114070b179f76d65236066d0c770cee9afdc37ac6f74ad. 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/CAENV2498040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcb475559ba5130dc8e374af4c88b30607405b254170fb228357cc9778e1e46. 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/QZTB62495319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4349cdcd1a7c1c4f70ef62b2facc2f7459f5258913ea96f49a09935b363e99ca. 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/AUGBT2444470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e1ccb8aefacc577e966ec4ab53e1a6409d14ed3717520a8448d4531edfc0f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUGBT2402000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdb450a0575852ec4137d3cda55cd45073ecf0edef6c38bcebc14c646c0181a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUMEV2409581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd4870c49ca0a6ab6ba4f66c302751875bc0cd4c13b9d1f47f1c0af1e37147. 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/AUGBT2332366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd4870c49ca0a6ab6ba4f66c302751875bc0cd4c13b9d1f47f1c0af1e37147. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUGBT2332366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829af3e480ccc6ccc2fb037756c7b5bd59de479c194402b4ec6b2ebed94fe1ec. 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/AUMEV2249043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017fc847be0ae03470f826133e88534b1da54f6df49013a432b1751386760865. 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/AUBEC2134232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f13c2b5b538c33748b79f06dfa3efb73dc34847852b029bda0ffac07614bcc. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/AUBEC2136281.