Domkraft is a Swedish doom metal band formed in Stockholm in 2014. The band has released four studio albums and is associated with the contemporary European doom and stoner metal scene. History For
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 0x602ccf28d40e727ba2617c4ce66f1c9cbcd6feae19518af7751b3bb16f7fb055. 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/2590c070-c308-483a-ba0a-6660aff12cd2.json and https://artists.proofprofile.net/proofs/artist/2590c070-c308-483a-ba0a-6660aff12cd2.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 0x1e0492e9060484d162bd6a426c20e561521c46af40f36bb406db2a80ac8a6af6. 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/DES562310970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076cee10303fc753640b71fbf3a9219d4f9c8a131f3bbf9d07622af68d72ac64. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:07:29Z), 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/DES562310971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9872c0ebd2860ea5e565a002d5ff1a0540cf08d14fa953fa3ace2ea392bfcfd8. 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/DES562310973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e34dfcb033df4567c52d33bc9592dac631f8800d3f409d6da19c7a3ca81256. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DES562310975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b7ed530b84184f4a22d5e291aa6b27abfe82c85668dc574d7754a00747c3b3. 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/DES562018301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1213107ed20147d4a14cadf3089fc7dc40ff959f1a2a5b8afcbb7cd7f27b8b92. 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/DES562018303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f10a776b76684a2bcd32e2f9c916bdec08f18c391accd6a36e2c3c6e6bedaa. 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/DES562018304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcd8a98367458f2f8c0588cbca84c134f5ae10206c33211c2aac33e1e30e994. 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/DES562018306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b2a3fcdd47c846a459932e76b558ae6fc0a6c2b5dea5ab75f6b30df5a016e5. 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/US6R21525168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f868a361edd9c7c954504da8c49002b6124293b816d9f70ac14ba749d7857e. 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/US6R21525169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33b35ce9a3083c97eedf3b9b20b6d7874ea6f239a1a8c67375a97ce34eb9bdc. 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/US6R21525171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acb72cd32df654dd4a4fe747260fb3a559d91be100dbddb4450d62235a3fbaf. 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/US6R21525173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aa5140c8c9e8e2f1e4059cef9b348da013fac415707e1048a406fe033acfc3. 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/SEYOK2203970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70936a0d1e91ea9ef8da1be4f73bed39cdf0ba94e9b50e5ab1fa0f3f61fcd35. 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/SEYOK2203971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cf6973f214a8c883d67e83b5a32013592500b8723b67db7f859d842a819c55. 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/SEYOK2203974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75747bda1b23402861db827a6f7c1f372cb5e8f29b0aa6d97089df934b034920. 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/QM6MZ1818183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bba4e5d04b5df114d610133840712ada19b093221a4d9e5dce9049ac29880e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM6MZ1818187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5e7e785ed2f6e834933ec339613bf651bd9b3ba30eab87e0b1676af786beec. 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/QM6MZ1818188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9dbb3fe47a79592f2c41a08835e8a200920a7902e94a9413cb6a05480f1a22. 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/QM6MZ1818191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6d905966ef0eca134a51f6be03549d02b9fd088ddda0cbcc1a6545d8effd3. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QM6MZ1818198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcb5f69af02bc9ad14e2155d962fbca5b95b47d32caebc15d6507ea06140d6b. 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/QM6MZ1818201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d5fb7d2a36d927b6c5b143d41662822ed5f52d410e9ef35fdbf9ee3def28ac. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QM6MZ1818204.