Severe Torture is a Dutch death metal band, formed in 1997 by drummer Seth van de Loo, bassist Patrick Boleij and guitarist Thijs van Laarhoven. History The band was formed in 1997 by Thijs van Laarh
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 0xa0ee9b37dcd478d62eb89d225dc3d146503269733e2507f2d2e389f762ef1787. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d74d4725-87ac-4eeb-b37e-0b737aad925d.json and https://artists.proofprofile.net/proofs/artist/d74d4725-87ac-4eeb-b37e-0b737aad925d.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 0x0edc3a266acc96aa79efea17038ccf7d4c1e09c7a19ee11696d0144816742a53. 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/NLNC70812201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca21bc1157b671f690410311ae077b8b4d871fdef3384e20d36e402e954d3d7. 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/NLNC70812202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc3533dd7bc3c67b64be3b31848dd442efd97683d5ad0a5b6570f22dc25fda5. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/NLKRM0905901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068ddc2ab32dc7c7441752ebcc5db570f3c6b174c9db681371a296493ed8742. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLKRM0905902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b7d3ccfbb6cc74c89e86c8286c12c471918824297917fb2a64ab89ded233e9. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/NLKRM0905903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6056c93b4c1c3bdf8a9d6ac107175eca1c7c2d3751dae1c1baa16ef9eacc66. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:27:54Z), 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/NLKRM0905904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618eca2f6f998f629a04c9c368e77974c024d9a5aaea480edd6afd055de959a6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLKRM0905905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f4a41ef7671e8b78f558991d0a4d7a790da95463a2622f50677a0ef3ff8b23. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:55:30Z), 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/NLKRM0905906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433807467e5aefcf8f24292928d171ac05e94aa33a1ac4c701f13abd4b26dfda. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:57:39Z), 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/NLKRM0905907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea81d51b5f1bbf7f0cb0e2924353877737aa62b37ad0a931aba7d92afe44721. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR33T2377901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3519f82d8205823010151b2186dbfd00b404871d4c31f46055d1ec438ecbdc. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR33T2377902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed3017ccc67d251c275dbaef49cd38606a9724204a82f285f836c5b49df788. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:28:02Z), 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/FR33T2377903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ca06b653e4847ea1e6b696dee76cacf843f63b01ef9d794874293b7d3492ae. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FR33T2377904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16c51f69392732de4dd311e28b3f6c99960b409c24ca0604435959f6caaff6a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR33T2377905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec483c07310ac690b680df91beeb72c08c0634cdab09b44d2bbdfff8459c316e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR33T2377906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d10ac6d70014da0eb97702d98232bbd765d96a71fdb404be39eb177e9bdaf. 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/FR33T2377907.