Sunrot is an American sludge metal band formed in 2013 in Northern New Jersey. It consist of vocalist/noise artist Lex Santiago, guitarists Christopher Eustaquio and Rob Gonzalez, drummer Alex Dobrows
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 0x0e99d6f071b8c579cea1b434070be3bca245e4c03e1ae24a939ff3ac957d091e. 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/675c2cd0-2542-4065-b76b-ba7df2568a54.json and https://artists.proofprofile.net/proofs/artist/675c2cd0-2542-4065-b76b-ba7df2568a54.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 0x4d484fd65912a48ee8b268ff3b3285c8a075eed78c39186397c90f2ce2b0b86c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:18:41Z), 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/QZ9Y21717837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115eac125d1bfffbd4adc4558de9239ffbed22ef6ebf5c4e856261a3c35c20f8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHN62137800.
Gutter (feat. Bryan Funck & Emily McWilliams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395fff4ab37954a3e1340c7f5ea3d88dade5d68b03badb9e33fd63342b78fa67. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USERN1010831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765c1f8bfe5d575d044a6c9432521a5fe6319132b2bf981e53ac246245d7468. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USERN1010832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6839fe10366500ae73867ce22c30b804e5dbe2fcda69caefa8c3c928b0353675. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USERN1010833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f5b4d3311574665f9f7f810b24a27034a270a9c944b8a77edd6c42aab8d14b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USERN1011324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5588b0e2ae7fafb8212ba5bff737c438174a733a1c97429a0629c6ddcab8b6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USERN1011326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825111bc799f82e40b4dfdb05ebea63f0dd52dce99aa0b03b8f1b309ac326b33. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USERN1011327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad699d58e890bd61ada0f8b0c28c9a406b15ccd82ded8687b3f87ac42f6cd719. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USERN1011328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0260cc49c4536d44cba3aeaf19c3914cebc6d43f1a1ae25713ad7c8f40e93fd1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA2B2204538.