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 0x89fa51ba69cda0cf0a476a0f9101568dfc6c9afe9e89f1cf6e7eb5b3da80a449. 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/9c47e600-2068-4f42-9019-dd80a04c69a2.json and https://artists.proofprofile.net/proofs/artist/9c47e600-2068-4f42-9019-dd80a04c69a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lena Miclaus, Fratii Marisca si Petrica Nicoara Sarbu
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 0xdda76591e11bd869f8f0cd96d359a6f1ae68116f9de802d9e246f43b436b0b71. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM7G92045093.
Cât pot merge pe picioare, Nu mă las de vânătoare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759bedf8b073a07ac93100b780ed9ea1737028c0806476d13f9181353ca7339. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZMEN2389292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04801f53a960ccf8869affd787a25670ba03ef9b112af8bada5747c1063d1667. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZTB52382935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af280989646c695bc5e6e6fe2329d20c335a8d400aaec00d56474876a08aeed. 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/ROBRA2404343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f89186668217c5dc2e8ada9119a67fb2077204a0628cba5d651cff2ce0873f2. 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/ROBRA2405421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e8e7123f244ea6d56843bc5508a438ce7a34314f2aac53ae7ab9f73925a260. 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/ROBRA2503268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3cca61419948e5d5f1d6727be482202564a7ffdaba23e052b5ebbc8e80edea. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ROBRA2504187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7403463d5d495d8894f354be136dfe554c5836f9fe239b87fa1bce5264ac3cb1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:31Z), 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/ROBRA2504519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa196089e5ec84d222ae1f803ea9e3aae22b496f408c8f4fc90116a028902577b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ROBRA2505243.