Sargeist is a Finnish black metal band formed in 1999. Originally created as a solo project by Shatraug of the Finnish black metal act Horna, he was joined by other members since 2000, who subsequentl
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 0x02f42d4d9271b016653c93b1be8ba42ce0e68442341abfabdfe8aee6bae0cc53. 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/34855c0a-a141-48ec-baaa-9db6af011adc.json and https://artists.proofprofile.net/proofs/artist/34855c0a-a141-48ec-baaa-9db6af011adc.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 0xbd970cece2cff38283c35d30a19f0452d387572b8b27814be7bd8bfe0ebd96d1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA560456781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d503e34a08ace72eaef0572feb3ff4714e89261822245b2fea2f363c78f7a2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USA560456783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60461d2b2e9ef83debcf5ce3309d1bfd12c183bcc8e86d86248e939b43b0dac9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USA560456784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf86991d18a614077454f75bd94b3ae58eaa29c8a4a3a3ace926972433cefc23. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:10:43Z), 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/USA560456786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34b2e42d14ae7adcfa203664831b96c4fe5b9608812b1fcbe9257add93b5776. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USA560456788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba4d85ec81a19eaabf7de69386821b3a3264994e867dba9f8de6f1445b8118b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USA560456789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf340af88be402984e2152dd9d231ffb86757f24c85a58e6dd1e3cfbd9360b546. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USA560617769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82cfca16ebea39006645f89ca566cf55b5c5ce3be1758f4192100cb90ffadb6. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:45:55Z), 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/USA560617770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e6c0b1f7e2559f82e8c923c59afa9a7359bea48ed20128f05262aeb94123ac. 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/USA560617771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35725b7a4b20240d65721158b8b392443ed2d94e48306c97dac5ed3fc85db55d. 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/USA560617772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d536b44554f5b144a4f6f60588f167e259ed0f45248f188589c1e571391fc16. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:11:22Z), 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/USA560617773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759c6263d6cca444d00e013f717377e47099264b624cef1c968ad9aa898823f2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:56:13Z), 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/USA560617774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d2270fad25dc5b15b54f3d6793559cd949422ebca47cabb2e9866bc8fe8bd. 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/USGE31015605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cc365cf44c9f33d710151264fe40788655671e9bcbff045d47d255a0916a14. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USGE31015609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634e1f1a5e203091068a1ee7a8565502a57b21f06cfb71fcb1627dd17e5678d3. 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/USGE31015610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe089ad845415a4b59d0875fa90a7cee3add4c617d8446837802b3c56d35a50a6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHM81493928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6fa0c0993e95c50c1a28a7d9240f294c3dff7a53dd2fe55b3b8b3e2cfae450. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM91868309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035c369d4f1258d2b7bf81d8ad62437bdd86e0a72e4e0d08ee4dde51d2265e7. 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/USHM91868313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5bf02dba6481879ad300ccaf4d98a0516adf73e829bb124fa199ceccbd5b59. 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/USHM91868315.