Donna Brown may refer to: Donna Brown (basketball) (born 1963), Australian basketball player Donna Brown (cricketer) (born 1982), Australian cricketer Donna Brown (soprano) (born 1955), Canadian s
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 0xe123c0477972c5cb5d078b343e1c30f7dcf2dee5fd7dcae6f59ebb3765370a2b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78cdbc91-9286-4074-8969-d4b6ca2900d1.json and https://artists.proofprofile.net/proofs/artist/78cdbc91-9286-4074-8969-d4b6ca2900d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verdi: Don Carlos, Act 3: "Sire, il est temps !" (Don Carlos, Philippe, Élisabeth, Rodrigue, Thibault, Les moines, Chorus, Une voix d'en haut) [Live]
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 0x3cae61c3aaad5c27294f338825fac22a67a09cd9e3f9ac96393f1425c0b7aefc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRZ119601110.
Agrippina, HWV 6 / Act 1: Vaghe perle, eletti fiori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8557b2102384296a86707829e86374ff8a1c2287f3cf32cc315d1fe6543e17. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLA509010516.
Agrippina, HWV 6 / Act 1: E un foco quel d'amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4831a951a66f28cbede453b6b419b2285548e53418cf45b385531ba8c58a939a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLA509010518.
Agrippina, HWV 6 / Act 1: Se Ottone m'ingannò...Se giunge un dispetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699831b2aa2919424ae5dcd55e9f0bc721140c79c4feb6ec20f064eac40a6642. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA509010528.