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 0x9ce833b205f3b4e51b48e71ec3c863da84ceb3896af7b09043f0d1843899307d. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b25ceaa-4822-48e0-acab-3d952baeb42d.json and https://artists.proofprofile.net/proofs/artist/6b25ceaa-4822-48e0-acab-3d952baeb42d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clopotelul magic - Cantece pentru copii - Masa buna
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 0x556f27b3425bb9a77c5464e15e959844a82d70e342ba4383a16842ff732c5e4c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ROROT0700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5e77b855d347aa85c2277b3218f511045bc584451e4ba24bfa5759090fbb10. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ROROT0700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073e27812dae1acf51542cd43b698330728ec7b59d4d6430acf7538fa774b306. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:01:52Z), 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/ROROT0700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0a60997d175f8fd1fe6d68dadf141ea41528979170a868cf0373a9cbb11da3. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/ROROT1100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb02d42361f65c329ac2641e1e669f9b79ff20a31a01aad7eedb0499be2561. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ROCMA2112499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e23fd10d4c801f2850f6d95abe7642096ada81df7990186a696679caade61d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ROROT2404020.