Raskasta Joulua is a music project from Finland in which diverse artists have recorded traditional Christmas carols and Christmas hits in a heavy metal style. "Raskasta joulua" is a term in Finnish wh
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 0x3a92901fef93850236177caf788d84a5709ca168f93923853143f0baa9b52a19. 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/9870de89-1d88-44d4-9f82-f77161dea039.json and https://artists.proofprofile.net/proofs/artist/9870de89-1d88-44d4-9f82-f77161dea039.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 0xf4bcca672db69dbf05109d3fdbcef8061dbe8f57a7d5dc9f1e67aecb1f4c140f. 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/FIUM71300787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f94b17cc25028c2cadf9f41bb5f2d36ee858f8bced7c158bef99426df3f3118. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FIUM71300769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ae47c3825568125d110c66ad69c03e24b79b3075a117471b24a3372dfca209. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FIUM71300790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f961a29a4b9ca5a44f14944cf03e0b4cb8ca4dd30c9931783ba5efbfd510ed. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FIUM71300789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce5446e3f29fc56ad14ae5b23b22535f268fd1885ecc81afa3f0df7ecb428e1. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/FIUM71300783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf474c81dac14c1b045a83a7b687ed14d9fb2dcb279c85bedab6a72be3e0404b9. 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/FIUM71300782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b8ec5e9251691aa33e289cea47a0d8b62a2e193892b77b0aacb5cd5ef51681. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FIUM71300786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243770d03d92076e2d0f1d870a3774254d8808c9f6f7e6c3e335035b8f4562a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FIUM71300788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb524ad0ccfa154d5cc279e63a7702a51d7302384a292c1b2f0fb93ecb964ccc7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FIUM71300785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabbaa148c42341ae989ad6552c0fe8f4e5bd1f557ed256fb4cdf93cd010fc82. 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/FIUM71400617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51bd3b80363487621b1de4c5bec7b200fdafbd04f0d242e5858bf3f4d0f73a. 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/FIUM71400612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac10ca8822d95d9057c419b7e7396323ad7e211288de373e87e07a88cb69131. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FIUM71400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f5a11a8f9c3b1813bddbe002b8796366414994942f07d3950693b0d6652512. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FIUM71400747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf90e5fef2cc5c17d71d00ae9959b09cc76a433ff82773c94496cfbb08a3d4bb. 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/FIUM71400749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209663ce1d33014df237681d010568d9cf50db7f4204a9840fd7d754dea54e0d. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FIUM71400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e08b582044a3c86a1fe32fbc8b9c5d53daf9f90cf16a88fe0980a2b2658eb8e. 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/FIUM71400766.
Raskasta Joulua - Tulkoon Joulu - Akustisesti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85acd38ee8fdc05b65e274a7479e1c75e008d3b811fb5679cf57eaaa73f769b. 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/FIUM71500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc125fdbdbbecc742a15f238a9deef9634a1776bdb8927397b50ab4f514ef51. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/FIUM71700437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd408f6d92787bcedaf1a22925ecf8e5fcc0c341768159463663e574bf44fd0a7. 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/FIGPF2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0368d4945f192cdea63edda968b3b9a2af4f25e9b769d23ca2f0e0aec49d6b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FIGPF2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987fec8f768dcaad3d103b71a41de790e58d97500c40b4a2de74bcaf41bfb5fc. 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/FIGPF2200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44882a7bca627bc6086a2b3688dce1262b404a996362d0405f67c64633c32fa. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/FIGPF2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04594b1ddc4ecaf4492c88c9973303a5723b9a8c5ef93945efb0c79c5f760aa8. 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/FIGPF2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80cf68b12042c99a65b46a922b4b7c4e176a4256cdb6827d07f09bc098b1e01. 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/FIGPF2200036.
Stars (with Antti Railio, Antony Parviainen, Ilja Jalkanen, Tommy Karevik, Elize Ryd, Jarkko Ahola, Pasi Rantanen, Tuple Salmela, Marko Hietala, JP Leppäluoto, Tony Kakko, Ville Tuomi & Kimmo Blom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df581703222982f5ba6adfd92912a2d89dee87bfa573289e4c9034083fb0229. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FIGPF2200038.
Kehtolaulu (with Antti Railio, Ilja Jalkanen, JP Leppäluoto, Ville Tuomi, Marko Hietala, Tony Kakko, Pekka Heino, Noora Louhimo, Tuple Salmela & Antony Parviainen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29662d85fded73e60bfebbcad5780d07b40552e2bce99078d22ca09852a144f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FIGPF2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c58338c9934bb77b77b4494bd79baacfd83f22c0bd77218dfba789f65d0cc. 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/FIUM72300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f197cae223922f1ce7b9582953ba2859e37873da4c9f13f2560a6de5d9e1fe. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FIUM72300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ed600f8a4262764d681979091064d6e1ddf8d424e382e10fda1bedcc8670ed. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/FIUM72300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac79870158543f5ac8b23feb0321ef039bbc2290346cc9369e1afd35689d1e3. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/FIUM72300369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c7326aaf5cba174afa368584104b9a080afba19c4fb5d527844cb5ac4f28df. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FIUM72300374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6302bddfcb376ab64c535bb80873f653c2890764180a91b87a8f3c9864ccfbcb. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/FIUM72300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1114f75a66baa3d17d1c1565b88418cffa97f85d19091b790e6920d633dfc6e6. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/FIUM72300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3118acd026a27d4e15c0adba9e6751323d89085b7dcf2745f9424baedaa5a589. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FIUM72400377.