Abruptum is a Swedish ambient black metal solo side-project band. It is run by Evil (Morgan Steinmeyer Håkansson) of Marduk, but the band was formed in 1989 by IT (a.k.a. Tony Särkkä). All (a.k.a. Jim
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 0xf98d9128c7ac14aa69f49dd83869e3c181d9102bff61b5692f00ea1697b24607. 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/cf64a287-7fee-4fd9-bb6b-c003a66ae191.json and https://artists.proofprofile.net/proofs/artist/cf64a287-7fee-4fd9-bb6b-c003a66ae191.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Obscuritatem Advoco Amplectere Me (Remastered)
Obscuritatem Advoco Amplectere Me (Pt. I)
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 0x52955e1a9423ee9f843ef772a173f17f33623e1512973022822e76c91237b6c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3650001 — a six-check JSON result.
In Umbra Malitae Ambulabo, In Aeternum In Trimpho Tenebrarum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042d782129db3f88d7403241930a5d31301277d70189c95bd07dcaaba06a21c8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3649901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e68d00deba3832e2e44190624101900594456beb5ae78cb43fae6b93925bbe9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745725 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc24a849da32ab9fe02d7a8518ca88b28a6c06a7e0a6e5f5f102c73350d6247b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745726 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5210f4a8e760c0a80b627336a37b5ef58d1bd02199f9dfa01a4c48645f04ee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745727 — a six-check JSON result.
Feci Factum Sanguine Gladios Made Fieri Factus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2931b4f23519c3943e63d948234cae7965ece89bf3d17732cd62d4cd673f5d55. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745728 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130a00a3fee64d2d1ebb1ed03cf20962a858d4ac4b3957e7bd77c97cf7ac80b6. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745729 — a six-check JSON result.
Turannum Bellux Eventus Alci Exeo Sivium Vitae Carthaginis Integra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ca59c433e44ea96dbad4a2472c1a7c04a2d75677cfdf367d46ca7df8ab444e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745730 — a six-check JSON result.
Hostes Orco Hostium Legiones Dis Manibus Pacis Ruptores Ultioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7522194aa213a24327a28d04a0417707dea01477ba13595d7c3678871f061655. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745731 — a six-check JSON result.
Animum, Mentem Alcis Iuventutem Largitionibus, Hostes Ad Dimicandum, Commotis Exita Sacris Thvias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1150ad13ee17e8b1f1aaab49f39fc2688d96ecd0ad8b040d93d24e7edf9b66. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560745732 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c4da338c9372fc36f334bc2b89c35d0c0ab70b65d34449682c21ffaf06de7f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU6145397 — a six-check JSON result.
Vi Sonus Veris Nigrae Malitiaes (Side A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611d77e4f24e21328579879afd60eb30d31ecad4926ae4134fab74ea4e2cb5bf. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2467093 — a six-check JSON result.
Vi Sonus Veris Nigrae Malitiaes (Side B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b01175b41b32ff09303fd61ccdc550563770cea3ac1e7f6fa4549f93ea3988d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2467094 — a six-check JSON result.