Matt Keegan (Manhasset, NY) is a visual artist working across disciplines including sculpture, photography, printmaking, video, and independent publishing. Keegan's work is conceptual and multi-facete
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 0x012411ac1f72687abeb6c59f5e92ea93878f41a51af64c996d285dca7eba45a4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1159b8a1-ae41-459f-8201-4d88b74cecfd.json and https://artists.proofprofile.net/proofs/artist/1159b8a1-ae41-459f-8201-4d88b74cecfd.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 0x75f0f6fbbf1f3924c35f40f4a584834a3d280867a16d00f66eab7108c5c1534a. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/SE62M2297547.
R.Y.S.E. (Remember, You’re Somebody Everyday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2be14d853c9d8538af46478725ad60c39ab4944de7de6b8f965979725cb042f. 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/SE6TI2321863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6388da89c76a0704fad6aa462a34e7e27db9da765361bfeb1331f446d183c06d. 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/SE6SA2364449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f99f6a62b723439afb6f136b354827eafcf854c3a2b1a740da925e029e1826. 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/SE5BU2401090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f92ae8a5ab851d43a0ef190a6257783db428606c5d9093e96474638e9bb657. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE5BU2495925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d8153ee63f554cc6ac269b907bb9e3d61eab4170e7e8e060a979eb355b64bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE6HN2461952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a19d8774dc85b35ed8a32ecbd9e30faaff739bf1e21f5fead863c34179a1d9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE6I32452522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3526f87afcfcde3e8b7f4ca4b08c88d1d9799dc5e2b1ca39468ec4fe963f94. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE6QE2461991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb864acc14896eb792b41c98061a8617aab611c9706eca274bf86ccdea9089f6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6SA2401092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8370e8fbb28913fe81a9803575d6d5aa93c9e08d190ffb30a1bd10fa60cd211. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/SE6SA2479738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ae718713b87486183b26c02693219f6fb7a7c23878ed81d4d642d94754f9fc. 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/SE5BU2589862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e72212470ec8f34c6487fb7ce579d686435bbb96469ae56d37d5fe60f33d68d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE6XX2585964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9bc94d70a45f8ba83458a240ef910fe237565b8b9beea37203a1d32412d7e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/SE6XW2581173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f18b0ce7d8f529e685de482052dfd490b7ce1b8a3899091e5c56d18c1a050fa. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/SE6SA2524702.