Extermination Dismemberment is a Belarusian slam death metal band from Minsk formed in 2009. They have released three studio albums and a re-recording of their debut, Butcher Basement. Extermination
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 0x1089392222c23e9b883c14cf41648980d1fd1c1fc78e862700e55176738a624b. 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/8498cbee-a06c-42e4-bfed-b5dd285c9209.json and https://artists.proofprofile.net/proofs/artist/8498cbee-a06c-42e4-bfed-b5dd285c9209.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 0xf56e6bd46440f27419829db57edc8d35464e2ec7fb81d5cf9f5ea525c1f5113f. 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/QMPKX1756609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758d190165469ad373e3c47d8a6be4e40b7bbd590e11f95c9361eabb8d788bcb. 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/QMPKX1756610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6559d003df8612013f6328857387151fe8037dd17719fe53b3ad89238ddfa01. 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/QMPKX1756611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732903e5b9006a7e3b2376a688926eea2124ed0ff3edb62787d8039dd41c5729. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMPKX1756612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd733b5030178a4db33b39395e0c0018f2c96b7dfc3ac4a5839a0a09b3cd547a8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMPKX1756613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb996d86bf645cf92dcfb4ce7d28fa0156013f7e3d7bd7df1185f5579a677b0. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QMPKX1756614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0bbb80ef884eb2401669c3e1a55f51db4d6dac9eefee144ade4c4d8a9aa550. 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/QMPKX1756615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3237161bdd772c13a5de52677130d2aaa107a26734de216cc3df55d57dda6ea3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QMPKX1756617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e3bb987bff4507d140a72c2fe106773caa55955708ca34d1e29209d24ae033. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMPKX1756618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde38608d700a83884ce96e7b3debb3d13e27c167f541ea3a08e1d506515f8264. 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/QMPKX1756620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a762a32b6387666d995caaa83e172b3149e7cccc5a856b645de614e5a49422. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QMPKX1756621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfabc98058aa081d10245d4980da337d66668dd7e3f6c7b593234f789ac4570. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMPKX1756625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58474026ad06a34a7abaafcb01ec6b080bb85ced6c653ea7998ab656cb4a6f7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMPKX1756629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8660b8157da5719fbc6ad2652109d7c652c0276760939e108072299a3de0a6. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USY251365268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb244cfca41715ed13e70266779deb83936d3c640d3b94da3251a708cc2343e9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMDA62126521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5a9409ea55178f68f5852ab4a49b046e8684341a1ef3113d1d55c76abdb890. 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/QM4TW2270646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b88bc9bbe1d9387f31b6e5c34eddd9b8a6b43e6d55be834e4f7b0481640bc40. 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/QM4TW2392177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44705ceae60eeaa78db73e1468556d214193c315399003d79ff726f0275a5eb. 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/QM4TW2392170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8ca8e43b6a41e01f01e23814b0fe9ec993a7b23bb0732ab2a7faced030992f. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QM4TW2392791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3630d97a8e73bf48b0cd382eec05c262afbf7892c35396534e6c6a8e9baa16. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM4TW2392175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48913f1c12619ce4469d5edcc005f2bc3e26a829c24dd70392f691b613ed9e2. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QM4TW2392178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1475134bccc9a7dc19e775f30a502349207bad6bf812ad3ce3ce316121e5e02b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM4TW2392179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaef6bdcd2434735bc5fbdd2702957426d2964855878b3df8d980202797c5570. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM4TW2392180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb64a73c641ad780ad88e3873e8280a14f5476004668bc1718b2a7817a48583. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMBZ92427709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197bd6e39e4943d08869a53156cdb519de9b6286b46715f41b47124f580cff9e. 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/QMBZ92427708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9541d28cf36e85c3083d0b7b600028d7484475a02266f831883101c9559add0b. 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/QMBZ92427713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a76060dbdf2649dbff7779ddaf53497a95f3c307ec0a82fbd02f7c317be55a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMBZ92427715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8cc1c9d7471b15affb9d32a5bf56c871221f03b140516d695c74cc9b928202. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMBZ92427716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb219d34a99f23c08be1734f785f8d0c06454e88a4c7450915adca7ca74c795d3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QMBZ92427717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb7a8495908e72fcbfc2e4f772cd96d699da94e76d1b9353d1204271938d909. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMBZ92427718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5133b7d42dda33695054d11336ed9135a643043ac3de39dd91938bd1d9994dbf. 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/QZGLM2287423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c6a8aa2d8bc57f5eef38be5e7f9b9d26fadb089f8cb0086d731ded9513883e. 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/QZMEN2449307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c6a8aa2d8bc57f5eef38be5e7f9b9d26fadb089f8cb0086d731ded9513883e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMEN2449307.