Himsa was an American metalcore band from Seattle, Washington. Formed in 1998, their band name is from the Sanskrit word himsa, which means "harm" or "violence". The group released four full-length s
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 0x4d5ee519ef1dd46f077f2252a8cba350877358cb0fb158b784d888d71c80d6ca. 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/6ee403c8-0471-4c1e-9d02-bc5998711446.json and https://artists.proofprofile.net/proofs/artist/6ee403c8-0471-4c1e-9d02-bc5998711446.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 0xb95f01ee855f9079ae5d9b0adbb8c6211c8c39d470086f86069a5cc0ae510a27. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USRZR0300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987b4c8bda8af26f71db206bb0f1cd0d7a7da09158e4885c3a8f3c02f24334f2. 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/USRZR0300902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4608ff6d0bfcf8ba843b9cb4477577c7da330868ca2576be13a811b34690c0e2. 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/USRZR0300903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10869b2dc47195265918a2cdcb7c58cb96594c498094725ca3c98ffa71deebb5. 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/USRZR0300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89d0a9b5a2e185b234f64f78a8f4adca45de33bdb0fdbe3fbab0df155699612. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USRZR0300906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d673b1c7430fa353f97f51635e2bcfa5aa50f99093e8005f5acf295c8ea34f6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USRZR0300908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0425382cf184547d18d7b2858e51736ed417877b5720c7c447c81435472731. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USRZR0300911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858885354d8c88b410e96a3dca400050e9b88afaa7ef20f5ae054790a4ed439a. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USRZR0600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272ea39e94cff3052619a074329a260b6b4a77326c9ed2bbe1547e527c93f822. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRZR0600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbf8eed81335f59ace0f5153bc7ab46e86d6b81ed6bfc6861f11d2019414f93. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USRZR0600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a81197e6daa9754c02ca53123ec6079a99954486d0eea36489f0d354994699b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USRZR0600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8847fd78b2d12a716c846d95c86ac984b3e8e0568651604644ad7c4e89bf3926. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/US4E40737001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa4ef2d3b63b721380e8705fec2861445146707dc66316b7f501feb0606acbb. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US4E40737002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739a03da32a81d83be4c1131318b1ba3352733a5da2ba47fb96904bc2178a94c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/US4E40737004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7434c99388f384a89a9e78940aed5c378984a996c7a3d7340a608f588c328. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/US4E40737005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d79bae47e0c8cb78007ca1bec4278052be6d0ca923ba3d43eb4b67325f00cb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US4E40737006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3c2d2cdf67557ea37381b183bb171f5fc6738fb6f76e79109378b342832fe0. 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/US4E40737010.