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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 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 0x32fdc48ef90b1ec7fe5f3d8def48be4d8bc5828e5200d5e5ad1207430e9dd030. 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/4f607778-7253-4496-ae8f-90d2a680b0fd.json and https://artists.proofprofile.net/proofs/artist/4f607778-7253-4496-ae8f-90d2a680b0fd.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 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 0x555a604ea800ab6110e16bc99376086dfe09047c100040843ae018c674c0eca3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FIMRR1600268.
Annoin tälle tielle sun nimen (feat. SONNY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3287dea8876289165c57b4b639248a9c4f4c53de19afd87ea2b51a00e0d81dea. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIMRR1800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3476fae9c51ed8c1dc8c01650fefb3103ed944c62f21a01a294aaf99b7fae385. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/FIMRR1800324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec00e930f0f301afe0cfafb99bf13b2165f355897c7683cd5fb0fc1479786a0. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FIK2Q1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509b965afda1bf554abd22f49908b8c64aa8f226629b670a52ef5e68b1486b2c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FIUM72200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509b965afda1bf554abd22f49908b8c64aa8f226629b670a52ef5e68b1486b2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIUM72200092.
OMG CYPHER 2018 (feat. Olli Antonio, Ege Zulu, Lostboi, Olavinuorin, Huge L, Bulle & Mäklee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86281490c2b3d26e6f81f18d339b22a83a2439e796775ea0b5e15210760af87. 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/QZDA52409396.
Koppi tules (feat. EPP, Nick-E Maggz, Matias Deep & ODE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8907cbc6e2cf3cfab54c83782b9ef9dffd3ed9de98116f29e490dd931de931. 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/FIMRR1700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7a807186b01cb6868f94b65540e3d8a23321d6123df5f62d072cebef7be1cc. 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/FIMRR1800372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15ced26cf975c511787a98d974de067d54efa7de1e9f67c2559fa1a81be34ac. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/FIMRR1800381.