22-Pistepirkko () was a Finnish indie rock band formed in 1980. It was formed in a small rural village of Utajärvi in Northern Finland but moved to Helsinki, the capital of Finland, in 1985. The band
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 0x06df898e6170889e660231498e20670906c6451ae7a8cbe2caa527c281ff4de2. 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/927cd4b9-4cdf-491d-8aa5-a34ec1b54dbc.json and https://artists.proofprofile.net/proofs/artist/927cd4b9-4cdf-491d-8aa5-a34ec1b54dbc.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 0x42580422d23dc7c2bb5cba421140d33a0e9813e0892139a23a1a25b93360b64e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FIUM71800204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc049fffb6da702923c4c2b4308b61f20660a6a5fe3b82b67dc69235eb7f6716f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIPFS9100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74343a35270043d38ae00e707b1c6c8a27c117bbbfd8f5fa1c60cf55837e7341. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY219800704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4938d10b68883d8f1c398afae37fa02235533e7dcc614532a498c2bbda6c7. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEY219800705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91961b8648c3ad16b1eb9cf3b97bc0becfe5d2a0dd603a710bf2a3a7ff49016b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVJH0100901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1738533ee426b4b3cd1b4ea9b60e3ed1692e98c6e58fa35127eb00ac4fe4fd1e. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/SEVJH0100902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1ca64791bfb1e38d0e7bff32b40ef33a88e825352b90c489e5f83b2bfd2cee. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVJH0500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e6a11929fcec22fd1fe3001b97a5f0c1fd59cf07e89809548f8ed1021b0a1c. 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/FIY211101603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2b1e0197fff39d040cedcde53d870340736e7eed66802b78ce21c29d0c62d. 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/FIY211101606.
Snakecharmer / Kind Hearts Have A Run Run
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18844ad546455ab569a5aeb2369a60d1cfa330a96610b7c076a2455a96e2f77c. 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/FIUM72200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2aca030e79d17ce2e993348c678e9e2e4c7bfb8750319995e60c0cff9a9c8b. 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/FIBV30900061.