Dead Cross is an American crossover thrash supergroup formed in Southern California. The band consists of guitarist Michael Crain (Retox), bassist Justin Pearson (the Locust, Head Wound City and Retox
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 0x47292451a190f2c3cda4c5bffdb6ac4e2e1c9c9ad710d4396e32fa90f9e779d7. 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/1d75804a-320f-45c4-b0f1-d379d19f58ef.json and https://artists.proofprofile.net/proofs/artist/1d75804a-320f-45c4-b0f1-d379d19f58ef.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 0x8eccb9bf8212ddd50b0ada9b7cb05beffa76745c7d21f2ed52aeabf354f23152. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM5WW1500451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e43d8d32ad97564874cd302f61ad6173ac5b53ea19e84ea56bd52732782ec1. 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/QM5WW1500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10208bea3cd04e476a77e7ec93ee32f4b0f42849368459673ee6e7b0cc92dc04. 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/QM5WW1500453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeda2c86a6f96b51a40ffd238d68e229d6d8928ea99651673193abcc154c874. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QM5WW1500454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6aa1376eaa16de8b555d84fc1d2118851ac55582eca7a410a870f44f12100e. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QM5WW1500456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc950837c09c4dbb61b0809acd7fe8347f9b9b06cea5aafb6a0a834e644a3558d. 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/QM5WW1500457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3223d0af545593da498b4f18575195f5b051049a8a9c60a8b47b665460429767. 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/QM5WW1500460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eccb9bf8212ddd50b0ada9b7cb05beffa76745c7d21f2ed52aeabf354f23152. 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/QM5WW1500451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e43d8d32ad97564874cd302f61ad6173ac5b53ea19e84ea56bd52732782ec1. 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/QM5WW1500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10208bea3cd04e476a77e7ec93ee32f4b0f42849368459673ee6e7b0cc92dc04. 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/QM5WW1500453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeda2c86a6f96b51a40ffd238d68e229d6d8928ea99651673193abcc154c874. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM5WW1500454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6aa1376eaa16de8b555d84fc1d2118851ac55582eca7a410a870f44f12100e. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QM5WW1500456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc950837c09c4dbb61b0809acd7fe8347f9b9b06cea5aafb6a0a834e644a3558d. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QM5WW1500457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26b60d17326d4e588d45fed35421afd6eecdfb554e937a3fe65f7e57131c402. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QM5WW1501014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e853c3c0a2d38d35c5b8de0e2fd441de44f3368844d4a1a83b1137287c12a35. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QM5WW1501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e853c3c0a2d38d35c5b8de0e2fd441de44f3368844d4a1a83b1137287c12a35. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QM5WW1501021.