Tadd Mullinix or Dabrye is an American musician from Ann Arbor, Michigan, United States, also known by the aliases James T. Cotton and SK-1. During his adolescent years, he grew up in Troy, MI. His Wi
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 0x876a0386b5f822be768778f086e6a972a56b249b49b1ce6b29616c24d1227f14. 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/8c7f6e18-5689-4586-bbcd-bdf07af6cbd4.json and https://artists.proofprofile.net/proofs/artist/8c7f6e18-5689-4586-bbcd-bdf07af6cbd4.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 0xc5b5cb3218b8e44a27e03564bfe509cbb8666ef8d46b3e175bd1dde34a54e744. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:56:23Z), 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/US2J70400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510fe1d2d7c12852bc5a5ac5fca92e7497365e971f2c927fa508c2167a19f309. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US2J70400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc231c032bb871f78179138ee23c38ddff679fba2d83384794f18983bee101b9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2J71802406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d04eb3baae9ca8f2fcdd2641353430538fdf4c515a0414d7a193a21e640d4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2J70402504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773266c66f925f4b5de3027ccbde0f3c42a0d4b3943d9dfd3813e6589f93116a. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/US2J70605010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81916cc72743ed2b5fb0bd03db836e2df3a69b239bb6fd54fb7e23b1341fc8d4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US2J70605020.
The Appetite (feat. Roc Marciano, Quelle Chris & Danny Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e643f04eeb108dce40dbbf83e2cf0c54bf3ff0162610026babe7d41a8f0f079. 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/US2J71700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ec0690e2860a7c36a8774260155957aac1db32b1287e32fd755134f97a9645. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:16:28Z), 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/US2J71700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f83f4d47ff9ea6c13e4a26596cc9eaa06a5e3cf5d82379880e79050d3df01f. 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/US2J71700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e1d9b32b7032c5d160fa2c8bfe37929360f2700138596d123e2a3ffa610ef0. 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/US2J71700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce65f2371d3c290c8e123345c05217df7ee7efe90c4e19313035c2394b2da7b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/US2J71700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fcf2133795107a7057be19540f11e2ad7d262e1ad80296b1a2fbf3f502fbae. 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/US2J71700309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b5cbe3a022410f4049829bf75058189eb4d93ddbed927ec90ebd743f21c70. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/US2J71700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa96ffc989cab703698786a7b0262b5e9618450a7ffdb85d5fd5f0fbb3cd257a. 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/US2J71700311.
First Law of Nature Rock Day (feat. Denmark Vessey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c9b71ff09fcf60048c72f44ea59c71c2ae3f74d9bafe338f94131e9f52fe93. 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/US2J71700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528987abb74b974157f72149149a12c5990f83baf6e33910a6d02451ca3960c2. 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/US2J71700319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f793c2bf58a2e8077d9cdeac48b93126bf08400287bc69ee84e015eba64558. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US2J72303101.