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 0xa2450da5b935d3c75d248da909def364f7b480eb0076885275824f7b9b060054. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6dae673-9018-4868-937e-cb6b816ea246.json and https://artists.proofprofile.net/proofs/artist/e6dae673-9018-4868-937e-cb6b816ea246.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Teit kaiken ajallansa (Arr. P. Laaksonen and S. Loytty)
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 0xe0ae8de364d9bd1d273fdc37b3de16c6794b4598c8f0535f0c13677272dc8a63. 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/FIFGL9500046.
Pida minusta kiinni (Hiljaisuuden lauluja 1)
Hiljaisuuden mesuu: II. Nainko tulla saan?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ecf665ae51d9df8cd094e7760a1d3909cf59d0a01d42a99660252da3af898d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIFGL8700002.
Hiljaisuuden mesuu: III. Sanan anna koskettaa (arr. J. Loytty and P. Simojoki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fa3a43ca1290ba288cd53ebe085f32e5663b02bbb4346ead8f24ba93270f8a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIFGL8700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c798e0c8fccaea6b3b071529c6e59e1df8e71f8e940cba3502b5c8787a744. 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/FIFGL8700005.
Hiljaisuuden mesuu: VII. Saavu auttaja heikkojen (arr. J. Loytty and P. Simojoki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562eeb69916e16f655ba98c95d1175a61a17c49120ceb541018c166f47217545. 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/FIFGL8700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef4cce01b301325e4be74254935bae8086154defeafb87c9ef6ac25ba80a95. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FIFGL8700010.
Riihikirkko-hymni (arr. J. Loytty and P. Simojoki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c47f596c741744784e514bd019bb6203a3ba291de46930c7c59c9d1471195. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FIFGL8700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb80b89231311dd44497c42911473dfb4102a246cb3226fcfbebfc462484731. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FIFGL8700001.
Lauluja särkyneille (Hiljaisuuden lauluja 4)
Kuule minun ääneni (Hiljaisuuden lauluja 2)
Pyhiinvaeltajan laulu (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf73dde14f75ec82dc915324263c5cf93b28461ed553b3707206137b00f741de. 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/FIFGL9200004.
Han ei ole enaa taalla (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee10c287e65e620bfbf624bcc642fe2d9d4ce9b100fc9538b7c69133788830b. 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/FIFGL9200009.
Kuule minun aaneni (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6899ec3478d5b92af428d74c534ee4f9fc53cbda320b0b77e47578081696d151. 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/FIFGL9200011.
Kuule minun aaneni (Hiljaisuuden lauluja 2)
Tule Pyha Henki (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42d66c203bc4eecc78d1a7de003ecd8f2bf081a2f256e8c2a632e8a9882d33b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIFGL9200003.
Pyhiinvaeltajan laulu (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf73dde14f75ec82dc915324263c5cf93b28461ed553b3707206137b00f741de. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIFGL9200004.
Minne voin menna (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5225b503478aa22bae09e59560d4c9a300a692276c6b9e6c9f939920bd02f623. 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/FIFGL9200005.
Katson sinun kattesi toita (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f50a4aaabdba0881a2aeb5013ce1c706b9c887ae2e0e3b675f4468cb7d60d. 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/FIFGL9200007.
Han ei ole enaa taalla (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee10c287e65e620bfbf624bcc642fe2d9d4ce9b100fc9538b7c69133788830b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIFGL9200009.
Kuule minun aaneni (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6899ec3478d5b92af428d74c534ee4f9fc53cbda320b0b77e47578081696d151. 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/FIFGL9200011.
Varjoista maan (arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f0a29470c6eda1a5255d2a9c6241c7a18b2b58813b2e3681aef6e115c90552. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FIFGL9200014.