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 0xa18dd3d001eda5b89fa2ea13e6ceb7b2569eecb37c4f53621957546f441618f2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68ac30f1-9def-4ee5-a5ac-126f2678c47d.json and https://artists.proofprofile.net/proofs/artist/68ac30f1-9def-4ee5-a5ac-126f2678c47d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
On Jumala maailmaa rakastanut (Siionin laulu 75)
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 0x34dc8bf6974bebfedd6f22cb78162a857549ffc1fa1f0cb87906dd41e7d8b6fe. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/FISRK2000041.
On suuri Isän rakkaus (Siionin laulu 102)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6670c142b1b13ee3441f3c33370acd931890096d8380fc41e319947be83bdd27. 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/FISRK2000042.
Ihmettelen Luojan töitä (Siionin laulu 127)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44e8fdb689a558b1efb083d15ea637f1778cff472c7afbc34dc2add5c45405. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FISRK2000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369a75735ca5443e3a97bcd2ef0c12737502a8f1a3d0f72faa7e702db89a7fb9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FISRK2000044.
Katselen Golgatalle päin (Siionin laulu 32)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b351cfc3702a26ab6be296dd761501003c6fb8c75a78f9d6934bc206c7ed41b. 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/FISRK2000045.
Jumalan rauhaa rinnassansa (Siionin laulu 220)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5283ee0b15fb595e24723dd36f7895f1403eb08eea0ccc9385a8d5d375b15c28. 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/FISRK2000047.
Riemuitse, tytär Siionin (Siionin laulu 251)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb455e49d3e10ef8eae55290fdd3d74325396112abfc0aa7099b70cd6269e0544. 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/FISRK2000050.
Nyt kodista laulun mä laulan (Siionin laulu 262)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaca4d28d44e656001274e3d17f20227b69e592a10a67fd77dc6755a8a321fb. 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/FISRK2000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9ce717fbe1feb87855cc37ecccc420b0f252719cc16184c4c6b6bc390c2339. 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/FISRK2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bd49ec62e7c661e7b505950a612a01768a9bc174dd3a965f22db74fd7564b6. 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/FISRK2000053.
Oi katsele lintua oksalla puun (Siionin laulu 297)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e986e998952972f6789980c27f8e129d55e3d062f0c6cdd66cac30860767b6. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/FISRK2000039.
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 0xad440cb7d7fee38ccbf233520f016edfbbd09e19a64ef45d850e18d683932597. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:59Z), 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/FISRK2000040.
Taivaan ihanat lintuset (Siionin laulu 249)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9910fbf4ebe618732c5ac6b225fd24e5828eac158116f467308538ee3ff6e264. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FISRK2000049.
Laupias on sydän Vapahtajamme (Siionin laulu 59)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01c544cc24d82ddddbbe33f3adcfb3f9d09f3dec2a93230cd98d7d7ab44a1e. 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/FISRK2000046.
Uskon silmiin nousee (Siionin laulu 291)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa401560bdb1169bf97a97d7d53162f6b5541201831ecf7db6096a3f79a33a0b7. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FISRK2000048.