Solution .45 was a melodic death metal supergroup from Sweden, formed by guitarist Jani Stefanovic (Miseration, Divinefire, Essence of Sorrow). Their final lineup consisted of vocalist Christian Älves
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 0x2778b197b6cc4440a74c215e83b3907fb86cbbae8b8da3e9349fb92dd6a94f0c. 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/0d360ecd-c83d-4099-80f2-84b6a38f6d34.json and https://artists.proofprofile.net/proofs/artist/0d360ecd-c83d-4099-80f2-84b6a38f6d34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spirit in Black, Chapter Three (Death Metal Edition)
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 0x719bbc8f3c9eb5731d79de906a511249e18432a507541c8afe229b096e1b7d34. 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/DEU602109804.
Spirit in Black, Chapter Six (The Ultimate Metal Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0dd417b6c3d929900c9f8646aa2ebf6825ca47978978939312c4592aabd8ab. 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/DEU601505767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d718752b9c85904f4678f585ba61551700567001dfb206d1ea0387d64af6f27. 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/DEU601505769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab3ac492d875cf630da976717104f6346313e6d746e5b728bf11ceb1b919a64. 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/DEU601505771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480c4e9fdc8ca6cdbda1f4b887f19be1001dca898fd6389df1f06ea877a8a561. 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/DEU601505772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6d37c7773e7332c45c924f8005f45774d7f9e9ad082b3c276f20a556479219. 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/DEU601505773.
Alter (The Unbearable Weight of Nothing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce06020989e8ddaf1467ab3e1039a9dada5d3da3131b6af4a09883fae8885d88. 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/DEU601505774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cd2c2c11831fa67aab6f818480a3d7d47430f34d579b7793b66246263b1510. 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/DEU601505775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c7dc7cb6c213ec6136b564a070a921bbe76c1a73094db8dbf87ac4305c8e0. 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/DEU601002835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ea4e004e8b1738eee050f36e1f935648080a9e29562b891c1cbac8948d781b. 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/DEU601002836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39e8eac5ff22852e4ae1566acb5823cd3811cbc79a4629a8b5ab116ceca2efe. 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/DEU601002837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc309d996cf57a18470bdc3d56e879ae83679c284542f5e7f32b3c492562d7260. 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/DEU601002838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6951bd09905e6c082ba20dd7e89ab1849b0ba87027031db88afa8d2942e92e1e. 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/DEU601002839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18672bf408b8032967fb659bb8b0e452013a155973b9689ed2891341d5a7c140. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEU601002840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731408648a4d606ba508f4a08e9ad4f8b07485741ff6755acd8f12d3676c585b. 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/DEU601002841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1961d666ba5f02be5e13398951944a155688e74666aaf9de441065899d351ce9. 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/DEU601002842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed59192b5ce2c1fe99d91f07aaa696d02fe4fdb53b80e484ba80920722b6fc09. 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/DEU601002843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0996cbf9d1365aaf66301b55d7e31e96e0e798957df553aed7eeb2951d891c. 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/DEU601002844.