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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51de00777eaa939bc29ee80544ab9e17c2eafebefa826d7405ad648ea32e3f88. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f72e32b8-7ac5-4d3e-8dc8-c6e71401d164.json and https://artists.proofprofile.net/proofs/artist/f72e32b8-7ac5-4d3e-8dc8-c6e71401d164.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oskar Merikannon kauneimmat [Best of Oskar Merikanto]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a87ca1474e171f97fbe493fe9954fbdc028639b9878465d167d045f795a36eb. 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/FIFIN9200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedf0b603af56e392f62e8b8c34fce945631314d7630df84e782b500c8181dfa. 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/FIFIN9200700.
Merikanto : Pai, pai paitaressu, Op. 2 No. 1 (Bye, Bye Lullabye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976ec395e893d2196ad93258458d240b64d0a8d1cefab4010f3202d92400e964. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FIFMF7500300.
Merikanto : Merellä, Op. 47 No. 4 (At Sea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da94a8cece12a263f031bf1a4c797a8eae5cfd2641ee120a6bf7b20d994886d. 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/FIFMF7501100.
Merikanto : Idyll, Op. 73 No. 1 (Idylli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81732272033b82326d2bfbe19dd14bb19388221f22467c368e841ad182be10b7. 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/FIFIN9200800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4722d26f7442e994cbc462be04bf8de4c5ad955e2ae9576a624d7eee43b530. 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/FIFIN9200900.
Merikanto : Laatokka, Op. 83 No. 1 (Lake Ladoga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aa243dada35db14857de02cb71be20cc3e8a49a10a9055f8f5017c05f9cc88. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIFIN8400800.
Merikanto : Myrskylintu, Op. 30 No. 4 (The Thunderbird)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90f11628651ec5a0b78fd73f0c883f657f9bb5a9b02010f1fcc20d549d42dfd. 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/FIFMF7500500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0142b2bbfc1219cacf81075e8c1012c4c3e8b17f3c76147e724d8fdfcfef09. 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/FIFIN8400900.
The Sibelius Edition, Vol. 11: Choral Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9a778f00adba03228708dd7f7d61da3e04385a091e5da5d82d2faee3f71a44. 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/SEAET1030270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b106c515b0cf1d4f2180a9ea5f7183a969a07bfcda4910c047461daa169e75d. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/FIFIN8200700.
Sibelius: Jedermann, Op. 83 / Belshazzar's Feast, Op. 51 / The Countess's Portrait
Korpirastas - Toni Edelmannin sävellyksiä Einari Vuorelan runoihin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdc9f9984c9bd94610819a82d36cd7815972f372a533b7926cf4db5e4057551. 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/FIWMA0900084.
Musiikin tähtihetkiä 15 - Oskar Merikanto
Finlandia-hymni: Finlandia, Op. 26 (with Finlandia-Hymn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d4764ff5f1a8ace5f3544505f4cc4fe55a3f1a0ccc656020aa08f0651d0941. 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/SEAED8614070.
Sibelius, J.: Sibelius Edition, Vol. 5 - Theatre Music
Vocal Recital: Hynninen, Jorma / Ruuttunen, Esa / Tiilikainen, Sauli - Kokkonen, J. / Dvorak, A. / Pylkkanen, T. / Tikka, K. / Piiparinen, M.
Viimeiset kiusaukset (The Last Temptations): The Last Temptations: Paavon virsi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d0b2a30e6f8a87b16393be3bfb49ba81e01f3662cc072ee193c16e1553272a. 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/FINDE9800127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25d5ac677e0060b89186d784fc63eba643207ffc6bd39dc4ee3169645d1b919. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FINDE9800130.
Sibelius: Music for Mixed and Female Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c2d49a6cb9ce96b4586fb3bec0663efd5cef438950d29166727d42baa64007. 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/SEAEJ9898400.
Sibelius: Works for Mixed Choir A Cappella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e63a667610f2ac00eeefe49a35c09e4cfa1e8dfd2359f55b2380b90e7e4b615. 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/SEAEI9625100.
Korpimaan lauluja - Toni Edelmannin sävellyksiä Einari Vuorelan runoihin
Rautavaara, E.: Sammon Ryosto (The Rape of the Sampo) (The Myth of Sampo) [Opera]
Sibelius, J.: Tempest (The) (Complete Version)
Det sjungande tradet, Op. 110 (The Singing Tree)
Sibelius, J.: Sibelius Festival (Helsinki Philharmonic)
Sibelius, J.: 10 Little Pieces / 2 Serenades / The Tempest / 7 Songs