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 0x59f15c4d98033f857fd868db1b07f79dcdc249a6b79b77b585534e0db41f9a8c. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05f798b1-c636-48fb-9ca5-7072bc29e35c.json and https://artists.proofprofile.net/proofs/artist/05f798b1-c636-48fb-9ca5-7072bc29e35c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb3c910840b5ef98fd8490abc865647de826c6ed03fb2eee417e93b5171ad2e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIJC71000042.
Kuoro, Taas Päilyy Aamu Genesaretin (Jeesus Ilmestyy Opetuslapsilleem Tiberaanjärven Rannalla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0cfa45ced8e2f6608d956c3d509b328676b241cd3c8d80d75f0d07a9756f62. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIJC71000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a62944de81118aba3fd99a3fc435827b5d63f73c64c806ac6e14364425822c. 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/FIJC71000008.
Alkukuoro, Vuorten Ylle Aurinko on Noussut (Suuri Kalansaalis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ffca4d749fd9b1c8909e986951f96626a411a25d6925e0e97d2134d53fc161. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIJC71000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabac58c6aff7f5bcdcf2f2fd51ffe8c23511e2051f67b40362ba788afe9de595. 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/FIJC71000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8343fff3a45e70554526bee4af9d27be54a2254208c7417f830f01eca54d8a. 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/FIJC71000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa987a1adb07d9c92965a15222905ebf6e5716660dee334c5a39320b55ba2419. 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/FIJC71000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2984045f958acbcd2af98f96253fd86faec1f575e5766c38bd6121158cf978c6. 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/FIJC71000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf36ce0e81d23023b3f62d4b7549be78e18cf74be7c2e2bad765cfbbe111d4e3. 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/FIJC71000021.
Kysymyksiä Pietarille, Miksi Lähdit Herrasi Luota
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc397156f17852979916de8dd8fc985d6341f73aa80921a1ecd0fda9c5000fc2. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FIJC71000023.
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
Resitatiivi, Kolmannen Päivän Aamuna (Pääsiäisen Ihme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e79c48bdbe8aae3a25d3da271a42052a57aa07b70ac1fe8114b40614f8f50f. 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/FIJC71000027.
Arioso, Oi Herra, Sinun Jäljissäsi Kuljen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdabb5dce31059033bf8e7ebff85fa186ac6a71e4109041829dd86333c6953f4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FIJC71000043.
Dialogi, Kun Olimme Syöneet (Olenko Minä Sinulle Rakas?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa5c64dfba75ac6abcb0ca826d92fbdb2ef3e5a4acd19c670c4ff6ba4603a7c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FIJC71000041.