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 0x6c19a8e3059cfe15f4838c7c3e54ee9b8da0296b19fd7601e3e1565e497c48da. 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/4f3a6771-749b-4f69-9b85-584372f66f10.json and https://artists.proofprofile.net/proofs/artist/4f3a6771-749b-4f69-9b85-584372f66f10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Siionin laulu 71: Matkalle lähdin taivaaseen
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 0xc75cf8a95e43da7d8c1fa5217dcbd9776fbf9f37808b07d3e59381f53faedf3e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:35:24Z), 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/FISRK1600173.
Siionin laulu 174: Jo nuorena on hyvä autuaana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79712fdeb3a8cee0847150f01a2752a7b3c3b31d1a76732b694f511fc4667a06. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FISRK1600177.
Siionin laulu 175: Rohkenethan maailmassa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80e86d3bcf6d048512d805e45f482101355ad718b6ceb29d9dd3bf3f67ea65d. 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/FISRK1600178.
Siionin laulu 182: Ei nuoren murhemielin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39f26a8a0c8b9f02f4e6741c7e8243439703c96edcec573816de5b3ad282107. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FISRK1600179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a92f622dd29eccbd3abe2be395dd0f0daf71d2c3f07192e7df65ecdf0e6eeb7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:12:10Z), 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/FISRK1600181.
Siionin laulu 192: Muuttuvassa maailmassa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2dcdec584d7164ecd38888bf3b674085a2fb90dfc6e9e001af187ac20b9ffd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FISRK1600182.
Siionin laulu 198: Nuoruuden tiellä, Herra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c5bf7dab3daeb2733d94f5d542c143bb88352b4e94f3579ebe884f37303da. 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/FISRK1600184.
Siionin laulu 203: Valintojen maailmassa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31250ad1758c405ffe19cc29c573baa0d238477e5374de5a5aeeff22380c8257. 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/FISRK1600185.
Siionin laulu 304: Soi kiitoslaulu, kun me armon täyden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d5222ab79a1fefb62aea5f1e1d47e1412c6491d6495d5a4c63317d0a94b127. 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/FISRK1600188.
Onpa taivaassa tarjona lapsillekin (Siionin laulu 152)
Taivaan kirkkautta – Jämsä opistosarja 19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712b42fff4f9a99bd5c6bbc0084599fa0b053563d64518b71186175f9e745093. 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/FISRK2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45788fd6c47babd32cc491c9965dc022f57646832d51d72cc97395eb89d09369. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FISRK2100023.
On koti jonne myrskyt maan (Siionin laulu 286)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad25e6009926640bb1fdd2aa78bbdaae4a599b8b68d5e9d3ffcc32f4a659f75. 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/FISRK2100024.
Nyt kulkee halki korpimaan (Siionin laulu 171)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf415c03cea6327a521b04306c99b427661e9932b6554d0613aa4acb4d272463d. 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/FISRK2100025.
Nyt kohti taivasta katselen (Siionin laulu 309)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9febd8f7313106ef6dc93b8ff61669a0d52ac4d0a7cc7aed28bed7c90216acf. 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/FISRK2100026.
Oi milloin yljän nähdä saan (Siionin laulu 265)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee82d0a02604d5dfd6df9c96c473631a8b505da2b87addf6ea3ee5e07bfa914. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FISRK2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006414929bd96f95d9a3d208b6e7544fb039a9ba6986ca911faf741a91754ed7. 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/FISRK2100030.
Synnit poissa, autuutta oi (Siionin laulu 292)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b138c1d82f5b19e469ea5c97a0e4d04cf9b738ad0bec7bf79c4a3b47e172fde. 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/FISRK2100031.
On luotu mulle koti taivainen (Siionin laulu 250)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce999b982ffccb35a6c6a1a87322f757671871e01ef129092617a50bc2685f9. 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/FISRK2100032.
Mun kotini taivaassa ihana on (Siionin laulu 260b)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68df9054add300467db0bfd4ec461ca6779a436bc703f2f72fe32db2f6a8a7a. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/FISRK2100033.
Oi Herra, jos mä matkamies maan (Virsi 631b)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcec402b5c8dbe4b5d9e621260b746f6ec1a87019c224773c622889dcb2bc9c. 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/FISRK2100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24fff70dea73ef41db5112ab2780c74515ce411d5a919a435e1e5bca335fe06. 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/FISRK2100035.
Pyhäinpäivän laulu – Uskon silmiin nousee (Siionin laulu 291)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f72fa341fc0a5f894f003122e929e7cd3ef2e3d4debe6d9cf817b405c66d53. 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/FISRK2100036.
Jo kohta koittaa hetki (Siionin laulu 271)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3d0f8a633d1d3e809ad5d40ff5f1b131322f7d0a82ccf70b28b5da5374d467. 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/FISRK2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb3361bdafe7dc90d7f0d9dc60c4d8f5592be826bda5f4007125ea4388d1439. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FISRK2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d310588bca092b3e1e0fbdc37cf1b096d44d40e1ac4e62ae90c9a5e0fb74069. 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/FISRK2100041.
Jo kaipaa minun sieluni (Siionin laulu 258)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc8c0ee9dafe44badc80fea3f39d9c4abf3bcce8b8113fd8423c39e85627a13. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:34:56Z), 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/FISRK2100029.
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
Pois ikävöin jo täältä (Siionin laulu 257)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e9b1e07abbf0afedadf849d3d303bdc5a04cb2a0c63c7bc8821b90b5f7bfa4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FISRK2100028.
Jumalan rauhaa rinnassansa (Siionin laulu 220)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf593e8dae3c0a2982d134c4d72a86283ba9b7c23e4328b0cc45371504abbe8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FISRK2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb60a457851b6ec6b62a7ce1cd2f09e454ec418229b050a5d015902eff805e33. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FISRK2100042.