Martti Eliel Pokela (23 January 1924 – 23 August 2007) was a Finnish folk musician and composer. Pokela was an expert with the kantele, Finland's national musical instrument. Life and career Pokela a
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 0xc73b43e0263d60c79250d293bf1505351aa3375365ce0534d20e0ae95994c0ce. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79d7ac3b-26b8-4b51-9c93-0c435f8850fc.json and https://artists.proofprofile.net/proofs/artist/79d7ac3b-26b8-4b51-9c93-0c435f8850fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trad, Keski-Suomi: Morsiamen hyvästijättö
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 0x98d3d11f69a560937f049effdc1556298c22f75c26f4f747af5052d527329d36. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FIFMF7800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376f1144e7cfb7cf83f8643e6c071f7e746ddbe0dc27d818e5f9fc58bf41ee52. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FIFMF7800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea306d89ca40c2034ec27bfe2e550c999c0c16b3806998bbeeaf602abaff036c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIFMF7800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3bc49b4478aed864d69f6fc6409f629cf50da48c653f4b66527c5c588a8f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FIFMF7800016.
Trad, Pokela, Sariola & Kontio: Kirkonkelloja ja maanitusta Pielisjärveltä
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557b62d706298f9175b05e32a4bbcdf4bb9ba5bf6b5d4b1a1e185a07233ea53. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FIFMF7800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c07e328e6046300e4990b971b18d58f4e72efdf3370dc04b2b25dd882fa421c. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/FIFMF7800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2601cc3795d31f0cf7dc123e2f4ba55c59af69e0ca23eb73b3f991599a31781. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FIFMF7800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c5f506757d48cf59a55d11185fd53c09ba50c13dfd62fb4169df2c8a085387. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FIFMF7800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fef85a4912978678a684db446be30eb85854199b644b489e3b7f9b492f7fc08. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FIFMF7800080.
Pokela : Mun rähkistam [based on Lapponian Joiku melodies]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa4fc1285e79308d71fca284ddd4bcb37a44feb595b07887a6f81e5498c8ed. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FIFMF6900031.
Pokela : Peijaiset [Hunting Party, based on Lapponian Joiku melodies]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3e71fc06979cc1562ac206c990019505e8e4f9584880acc13ede4f9401bcfa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FIFMF6900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86930720c56fff79e40a037d3546141bf66278b5c53aaa0972b6e6f75e10cd4e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FIFMF7800073.
Trad : Kalevalainen sävelmä [Kalevala Melody]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb256ae42093e4753a39d639d400b70d3997a2fb13efe6e5aa40ada844d8ba5c. 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/FIFMF7800015.
Trad : Karjalan kunnailla [Karelian Spring]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb440732d7025e1b1dbe2a90cd926c41e4fa2830c3381f9c5c9b14b07b01262a8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FIFMF7800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd98fcf2b365f7974d80d8dfa960cd7ff63d338fbc154051952f692da700b01. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FIFMF7800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d3d11f69a560937f049effdc1556298c22f75c26f4f747af5052d527329d36. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FIFMF7800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea306d89ca40c2034ec27bfe2e550c999c0c16b3806998bbeeaf602abaff036c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FIFMF7800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557b62d706298f9175b05e32a4bbcdf4bb9ba5bf6b5d4b1a1e185a07233ea53. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FIFMF7800076.