Dan Cummins (born May 17, 1977) is an American stand-up comedian and podcast host. His first comedy album, Revenge is Near, distributed by Warner Bros. Records, was ranked as one of the top 10 comedy
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 0x1d30ad8281073209c48ca78dc908cbfe00baef7b6748401d0aaeb14ebbcd4be0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b8df89e-e31e-4dd4-939e-f3c9df62d9d8.json and https://artists.proofprofile.net/proofs/artist/9b8df89e-e31e-4dd4-939e-f3c9df62d9d8.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 0xb7463eace225afd5853961451a28d7fcec5719a9f0c7b1f990c37cf462d60477. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ5HC1907602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa481a291771aa3d7ed5372282d19c8f0d0276e7b21569dcd7d1eaf3237cf2ac3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:51:31Z), 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/QZ5HC1907603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8558e7523ca502ce9f4ab298a7a69cd8fcd9c978a0d515a1b7be4749a8e0efb3. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/QZ5HC1907605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3b05d01905761c3a5189e83d80dc0111cc8a8ad884c03bcc2b7e57b2ac5c8d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZ5HC1907608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7251d0ff5a5a8abe948a4e305ee01f1a0bfb738a3a01430880cfef6e8848a644. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ5HC1907610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18e6a11e8f6a7a46d321ab350c60e1c00ad8b1c7d063c957bb16c6f8a5ba41d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5HC1907611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c28f5a2f5302ab4abe8c925c339e06ac4069eea80c901ac78f64c7b23d4d7a8. 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/QMJYX2079305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628b7b296cca578235e6b074aa407597e9213761dccbf5e542d9c4728aa5cf45. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/QMJYX2079309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5cb53a781fb8c4aea56e01bc8b338be46eb48232b231072b75f936103547b0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:11:55Z), 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/QMJYX2079310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aae6f8bf2b3e09593e20947b0bfb07a74de3cf684e81bd8825f30528abb3f2. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QMJYX2079311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8258335ef718c290e246d7e97ba2bfa49d35d7a3ba04821e876dff61ec461b68. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/QMJYX2079313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc37aceb640b87e1b28ef8f5ac1961da41c8afe5f6063c89eb50fa737ba446a7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMJYX2079318.