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 0x101426cec28538bd99b5debc21b2dce65552adfafe8e57af12ac88f085867d57. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0952b77-766e-4b00-923d-f6dcff4c3e82.json and https://artists.proofprofile.net/proofs/artist/b0952b77-766e-4b00-923d-f6dcff4c3e82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Happy Birthday to You! Songs & Lieder zum Geburtstag, Geburtstagslieder
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 0x3c5331f54da9e9dad0a89484135b9ec2e4c22869ff2b88ad50179df4f52f3af8. 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/DELD90805971.
Schlaflieder für Kinder - Die schönsten Kinderlieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0175511c1838d8800566f3cac5f0feae3e2d30a7829f380c9938da8f10c16f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:48:28Z), 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/DELD90801020.
Baby Schlafmusik: Endlich Einschlafen mit 432Hz Musik und Regenwald Geräuschen
Musik zum Einschlafen für Kinder mit Naturgeräuschen - Baby Schlafmusik, Baby Beruhigen, Schlafmelodien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0133eb559dfb71028fab6e5fe30a3add8dbd3dffe12c947062a93f70d21d2ea9. 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/DELD92200260.
Schlafmelodie für Babies und Kleinkinder mit Vogelzwitschern der Heimat (432Hz Musik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148cdab510f67d390b0194177f366021ea1b3752db25d77c73c4ccc36faf04ae. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DELD92200263.