Niskala is a Finnish surname. Notable people with the surname include: Janne Niskala (born 1981), Finnish ice hockey player Mika Niskala (born 1981), Finnish footballer Category:Finnish-language su
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 0x1860a2af123624119d400824ceea0c2346049e5ff94a97f935adc6720d5efea4. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba45a75f-aac3-455f-830d-77b11af8eb1a.json and https://artists.proofprofile.net/proofs/artist/ba45a75f-aac3-455f-830d-77b11af8eb1a.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 0xdb850e2f9701e17a867596d12997ab42d8a0ecd15c5ef86ecef89e595fe611e6. 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/FRX281917273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab7e6a23b5ad74e3b6e8d5c6c09f1503f02a0aaf38004aa7134202b1c7f0b4c. 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/FRX281917274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2198eb348d9bc31e84873f315e2b504393c11afd6ab806e8b20ae4cc47e8ef. 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/FRX281917275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9461c5db63c9ca3b0dc3e4a925bb6483c0dafc3cb06287e41cb75a8a54e03bdc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRX281917276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1ed69b7b494d9fea67b1a700ab7eb99c4f8d5ed20cde58f02e1e204a2e5534. 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/FRX281917277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f7de4a878af8e8b880546e8c8fe341ede369ec9723bf3b952ae65ed0079216. 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/FRX281917278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f44ff2fb8828e37d5789cb34057defa39498d337d5f6381f661bcbd3ae722ba. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX281917279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213e95e6b2a890d486fcffd052f936917a6e8f82621fe42e86464c70a8179cb9. 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/FRX281917280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfaf2f0b53a56ae94846d7c28b55c3d4140e65bd7503784b4377a33942602b3. 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/FRX281917281.
Almost Before We Knew It We Had Left The Ground
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc834a27c4914c338460ab83ea90c8a54d2c8d2ccac733ca5a4648878b20281d4. 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/FRS182124616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fc527827fe92d84b0734a44942f157a3a1f2a873be5b4b8de0a5c82d25ec52. 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/FR10S2155455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5342daf32209ba3f547f8fa2136af17f90667ad1084bb8aa57fecda3f54bb2a. 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/FR10S2042832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5372e1cda4b3da3c92b6eb6261e006b77a6533e7d3b3fc10060c9042fe1664. 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/GBSMU3605363.