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 0x88ead66cc44adecb468f5506dfd28729f6e2f356cd8ab580b2a5caf65df711c0. 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/d0f9972e-bc9d-4e72-9c07-27c45f4d90f9.json and https://artists.proofprofile.net/proofs/artist/d0f9972e-bc9d-4e72-9c07-27c45f4d90f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Echoes from the Plains (Throat Singing Improvisation)
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 0xdbbd35a64040e8526733bdc614e3fdc4167f93b21cfb6125806e110aafcc22bb. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), 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/QZZ7R2440544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9176e0b62be6c215d9c24d6db2915a5f2c1c6ae09c933d4acfa3d38506fcc9bb. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZZ7R2440545.
Temeenii Magtaal ("Camels Praising Song")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ea6c58ddc8bc052dfba8f3ec4712a398e43c32fabcd08a914fb2057c841e5c. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:07:40Z), 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/QZZ7R2440546.
Shigshirgiin Ai ("Durvud Mongol Folk Song")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854df107073c20bcf1d854e59e97901c644cb22cce241ce73d258ab2f78bcd27. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:12Z), 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/QZZ7R2440551.
Jurai Geldene ("Khoton Mongol Folk Song")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcaf15ae0414d7d849c5a2a704b87e27db8a0767cf07ab808db55ffabfae9d5. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:03:21Z), 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/QZZ7R2440553.
Khadiin Oroigoor ("From the top of the mountain")