Ajattara is a sextet black metal band from Helsinki, Finland, led by Pasi Koskinen (ex Amorphis). They formed in 1996, split up in 2012, and reformed in 2016. They were signed to Spinefarm Records and
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 0x08cfb6d1f8755b3e7954f26f134191207018af0d75cd48ffea69c2d2dffcc817. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2c6b9b8-d0eb-491b-9869-8fa05b7d42f8.json and https://artists.proofprofile.net/proofs/artist/a2c6b9b8-d0eb-491b-9869-8fa05b7d42f8.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 0x4e5654fc251ee821e662fbe84c64f74ee315318d116f2dee5b4b1137dfa7b786. 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/FIUM71301092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4050e8698e6bfc89d4969991df586fddb7a0feb6579081c094f2e8b3b12b5e4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FIUM71301094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae121f18cf3a41a9f486da428758dec24349a87c765baee07b6b0426f854498. 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/FIUM71301095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1563ce1070c6c8db1ed120840e917454cab1d48f3bf8e4655dcb5560dd5fc993. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:24:43Z), 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/FIUM71301096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d32efb26b2194d6106d13b17c9a372d84d07c222affeec0e69a021048542675. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:57:45Z), 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/FIUM71301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751660a056e40183467c08b08cfadd8146f4469397419437843a08eaed36c3ce. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:22:09Z), 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/FISFS0400169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf491f7722487f82db2563a8ea184907ecd8d4097c3f3c8fc98f6cba90d1fc5cd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FIUM70900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64212437f68650eae1b81b1eeee2c9b861272a83c28769a9879f62e25abda7de. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIUM71001340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993ec8cde9bd35900e850f85d66d71fb73c3bacf878f5fb82f9fc209113e6164. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FIUM71001341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd1d1b7ed37c2311933251997ebd2f21dc7ae446a2aa949b14ed705be51c837. 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/FIUM71001342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f75307808eda46f74063440c776b7c5387e413f314b080b75bcdad168bf41c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/FIUM71001346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb05df981e79d58cb29adad1c87cfd63c10630dffafb2e3ae6f0359d9a301337. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:08:07Z), 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/FIUM71100698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdb063ad00c87036e26ff01512fa65b07684cdad83dfc5d5a000487245c3a5b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:15Z), 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/FIUM71100699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d84beebe64236d07c379444879f0ab45f9fa1ca703bb18c81a73d9fda2a2112. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FIUM71100702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f40d1f4b9e809f5b145d005f33985283ee6df62a628037670ede7fafb8fb6a6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIOA81100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4537069d966eefade6b8bf5739dc58a8d32c535144b9198baff5f1633b90ad33. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:17:06Z), 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/FIOA81100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2b9372ab6c2a1dcbf554b044880b82b4da2d803e4cfaac3809c1ac029824e1. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FIOA81100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a7a9c1082403d5242e47f0cfa8ebe02d3c7c4e7fc70715f49f0a9dba2a51de. 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/DEZ651708308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e9469b04f3db60cb720a485bbcc66be5e5ffea902b2da0732a6eca697890a1. 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/DEZ651708311.