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 0x3c28df937d002390341349d28db7bb8141ad990997e46b415d32701cfff10b0e. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7096d271-755c-4724-8ba4-0d8915e2c41a.json and https://artists.proofprofile.net/proofs/artist/7096d271-755c-4724-8ba4-0d8915e2c41a.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 0xc106359b3dc85b0dd59e679aa61fc47fbb2f8a2fb6e28a84b5dd55efb989bc13. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZK6P2262152.
Melodie-Jiji 4.45 , Jamal Joker ( New Wave ), Verse Transparan, Bourik The Latalay & Bad TK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61db8f8ef01645433a8fedc15f6b21f5fb175490e419b89dce349959995a3ea9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZK6H2214029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0cfdd6e66e024e7f7356bc6cd99f59d2e008720ed1b2c376def9c2a3e14b76. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:01Z), 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/QZFYY2394946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf589c49b9cb3c2266c48c9fc1d2cf310d9125b6b860cfd1cde45a0f63335090c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN32387186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b2a39025b1cca03bbd3959040e8c8caf158c18549349b493b79afe0529a521. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZWFG2396031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a80e4dd716e797133f81a71ec30048c176c72d311387b052c2b6fb78e3f6af. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZES72481477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f46b0625567c6e7472b52d5a99e395c306346cc220d4a2702171e0da140977. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWFW2471396.