Mikko Tarmia is a Finnish video game music composer known for working with Codeblender Software, Frictional Games, and Wolfire Games. He founded the independent record label The Sound of Fiction.Inter
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 0x0c6c482fa6ca7bcda24060d27119c425017ecadd35a99b1bb2de3b62018d9071. 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/09bbd6dc-a895-44ba-bc86-44c31643738b.json and https://artists.proofprofile.net/proofs/artist/09bbd6dc-a895-44ba-bc86-44c31643738b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
AIKA - a unique Soundtrack for a unique Story
Penumbra (Original Game Soundtrack) [Special 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 0xff78702978f438c8725cb88477171e5d9ac61fde7c306098402bee053160d17d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FI2SF0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb029de4b6e90ef9bf61f0e74606a093eae01af833c059205b3f6c611a91ffe3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FI2SF0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb051c9a34e13ea020e3af7b85d2e35549669ea35f393225886526dafb217d113. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FI2SF0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9aba20c373dd90923414b35d5d9ff7aa0b625b92e66bf7a0c7416ffd6a0015. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FI2SF0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbea562716d34634b0b0cc83402a3d1dd48d503caa474260a90ed16965b50597. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FI2SF0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71590dabaa850049bca98afa3c8b07b6f58b253b1a828ad3984a831152ff5aa1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FI2SF0900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb212950fcd87a4e62424772df1cfaee51832dc740afc3fbcab62ce841057a0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FI2SF0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09480d5c03331b3281ff5be8a8126d1198f871958e0d25f73354ca7195611e30. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FI2SF0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8afe4ea50bccb5ebbc3dd8c7fe4dda3dfdf45d5185398aeed681dfd0f87cf76. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FI2SF0900015.
Amnesia: The Dark Descent (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798f1fdfef3c9092232cbb36d8255ff949f8410a39358769c1fb731d6e646cda. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK2010039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3338fc15950a5f5e5e2c307f0a6d37594736e21ff8f4cfd44d5ab56a0fb4d38. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEYOK2010043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36262155538d329e434c88689d5b1a8d286b0ee3e01beb52ea2f72bcd7273e68. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/SEYOK2013923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436acabefd65aafc3eae4c7943fba1503a37d972ce60396c5b3be877daed759f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEYOK2013925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6515e47d6306efc881adf5f01291b556d9adb819a4a63af2de1bedd5eaeb6c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/SEYOK2013927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa87ce2464a632030d354b6e10dbb08b7d1947cf3d837adcfba719b7626ccee3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SEYOK2013928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fcdda52d3f49de0ac6911711c13a137cd7c8d9b989670003121bc0533c6aac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEYOK2013929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341783ee840d7328fb2766a43d7c3f7c5efb1148b5351552b366caa2d9529db3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/SEYOK2013930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0acd9c98d1448c9a658d025ef1cc7c8089e0eb1ab3b38cbebedb2c4d70f1e6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYOK2013931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579564d5468c0274154ca8a9d3d823362697f44f57ddb7ca759c3f6a9599829. 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/SEYOK2013933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bbc6eac0226274c3d8c877970e1783e616c30679da72d6c7192b39a1f972ca. 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/SEYOK2013934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4de48fdae7e4863eab09e3282c7b8de50d847c5ef77c45909e1b8c1ccea42d. 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/SEYOK2013937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf52bcc98f2dfe7af1728ae89977663079ae95e8e5d420a14b1ce9b50c69e8a. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/SEYOK2013938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdaf54fe8a4e940f2555a175d44210831e9df971c2e8c9e04e0b02570e47f34. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SEYOK2013940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287ed259e7b55fdffab08d8e2b5ff90d0e4cec2bbfbc6a4bb5086a64caa0a15d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEYOK2013941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07db59bd1c07a92e216f36ebaccc617a58ed14806a171e707a35a6559c4ca164. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QM4DW1881826.
Amnesia: Rebirth (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8a20552d819a77d488e0686df662e6f0ffd2cbe3a5be3716817896e5780cbe. 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/SEYOK2053998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f9e82de494063699f819da844ebf9d0d4231e9f175b84392beb49a49da154. 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/SEYOK2053999.
Amnesia: The Bunker (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19af608cb4ae435fb911c5c8b3b05a9d7828b2ced223b26171878f0ea6e89af4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYOK2321377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17261e4b08a9af7df5eccba359bf30d7d5d2650fa50b2419ee21ab2d18e500a1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEYOK2321378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5ac9c3c11ffb7cb95e456f7eab97f792d4218eb4f4e7ca898f19f34e92eeaa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SEYOK2321379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513edabed2dbb0cf0498d4ec911362268a0dea6c15dcc668c2deaafb4667c83f. 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/SEYOK2321380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58543e2f74c3a6df112bc272d820c4c169039286a927db4fb5d6797e6e1ef87. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SEYOK2321381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb493aa6bc2c2cf63556c8a71154e6cc4be0453f3cdc5c7c2b48146d59a24c7. 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/SEYOK2321382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0366ac9b1fb955161fdfb759d3eff0dfafcb5a097e9df271307f7be8ec931ee0. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/SEYOK2321383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd464fab0663032ff7b30df176475d977973e8e47d794c9ed36947162c2b97753. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEYOK2321384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e7125d5c36dfedc3a29e62de14f7c5a29eff24cee68fc17d28b5dc1f5c2de8. 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/SEYOK2321385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c88c0e68e258c12961c29327f1f8adeeb52a186998eaef091137ba01240022. 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/SEYOK2321388.