Left to Suffer is an American deathcore band formed in Atlanta, Georgia in 2019. The band consists of vocalist Taylor Barber, bassist Michael Guglielmi, guitarists Peter Higgs and Jacob Gordon, and dr
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 0xafc83282b13b8d0f5e88dd70ec253920f7bf3c063b11f784653432a3aa95f52b. 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/378598bb-b1ab-4757-9cff-53558fa6cd37.json and https://artists.proofprofile.net/proofs/artist/378598bb-b1ab-4757-9cff-53558fa6cd37.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 0x3fa06229e2eccd762dd73952f693501e3e70bf06ebe057a610c7f395a19aa6ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7282392330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2239220a88c182267c1355633df6eccd58e8a9929c36e9b0523e62a7f4d0a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7282392331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b693a16f9226200f0b55303f47818d37fb99439c1ec3e10a99fa72283869ee4. 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/QMBZ92327978.
Overthrown (The Thrones of Blood Remix Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2030531f2667f4984702ebb887d8d6a11970211e1b19bbff91b372b2f0ac7843. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA6D22300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc2704e162780f7e44f7ff56caa04bb9c60cccbe36ce1c92e09b7c1564c15c. 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/CA6D22300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc2704e162780f7e44f7ff56caa04bb9c60cccbe36ce1c92e09b7c1564c15c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA6D22300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8175f040833a4e1d3194b1f47c7711243537de91d5960eb09005fb872f4c756b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TW2325246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8175f040833a4e1d3194b1f47c7711243537de91d5960eb09005fb872f4c756b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW2325246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fc2929c1d9fcba80a480913dd6c436cb1f1028b238ae100ed7a0b7a003d1c5. 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/QMBZ92291130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffd8644370bf4c8b1a6ea8625503c8194adff27457ff276d594370d1245f40f. 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/QZK6M2330421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd562340b5a837c587992041c2cd479002a8c361c20654ccb5cbf2f567c90ea. 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/QZHN52284627.
Nylist 666 (666 Vocalist World Record Track) - Remastered
Nylist 666 (666 Vocalist World Record Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c1cefcf914ff20f1912d52385db04f591a01c7d1c0a803ee3ee3c3e178725f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6H2153994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36a06827108c232aaa3f46f9a0c3125e73931709d0e966d44182c94a4f783f7. 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/QZFZ22442014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10a83b7f5ea57a773ded036d3f598fc24514999f4d115095b3d5d000a7aec59. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDA82171906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b51baccda74590737d55389567d6b25ba2cff61836aba9fbb3015890ebf168. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDA82171907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78edec8dabb814e3e09d79377aa2d1ed33d54b2179c01a3a6b60a97120b42f3a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMER2022193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053f32db0549c14a690fdd082b0c78763acc9488f56ee35ad9a3b2d28c6379fb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDA82171908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75464638a6021a1d2b612dd32a21bcfe26e50d2c84ac37dfc608c96512065b9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ62190439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893a193796dfc9b467d7bac588c378b6a5ef0e5bf6393b3318ac32e3c813082b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDA82171909.
Beyond Deviation 400 - 400 Vocalist World Record Track
Beyond Deviation 400 (400 Vocalist World Record Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1ff765a318890284fe074834236fccf32af3d0127cc73e630637926bb060a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAE562123701.