Brada may refer to: Brada (writer), pseudonym of Henrietta Consuelo Sansom, French writer Brada-Rybníček, a municipality in the Czech Republic Brada (annelid), a genus of worms
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78b4d2e90aec11225a76eb4470e64e46a14c91630519725c57334aa8f910910. 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/001c272c-5440-4257-912a-eb229df2eb55.json and https://artists.proofprofile.net/proofs/artist/001c272c-5440-4257-912a-eb229df2eb55.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec7b32d81b99cc7898acf1c5e6c1a0ea6f8c5f06de121aa65d657d5b500e67. 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/QZRP42129434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c69f0b369305c61cec23d8280fc50679088ef7adc198668c2633ba29c7c4d5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZES62245338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f73e54ffc9315842d1bf0189e0252d8b4448f28351ef2115159e7ab947d3c68. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/QZES62245341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f612c64fd10b690217389f5cf27ec47073c531ae7ca25de1a727b4c875bc1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES62245342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7180c980f6ed7afbfdeb93dabb40f1b33596a6035f9b50c4d8c561806642573. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZRP52378507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241ffdd2963ccd8292ca7139a99d891caef49f5b18ec46916169cf2191f4cccd. 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/QZWFJ2320899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fe6a7bf11f5ad4f290a3d1e449e4e3ad483eb68b5e1b46f4839db7fed33aa. 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/QZ5FN2400917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815792e5e9e95f509f87ada65cfc717a6f9fde4b9adf7eec9d6607f264f09d58. 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/QZ5FN2455096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f80f85cc439f0475a583545a34fcc37b33f3faf08272f3535b48d8b48048bb. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZ5FN2455098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8374e6202c15d43959a729eb6b40c6bb5cb2e77a6a890df78138a71a5191406. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USLZJ2448152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9c9249d969ef26d046194731354c9453f1c29c1cbc8be895b8ef4a9d35d7fa. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWDE2476254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c78985e1c87ad3946741077855bf504d9a8ed289ae359c53f5530d778b7b3d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWDW2443108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774532407f8055877437edfe0a78b6d96b42779b3598368f6fd5d032b662e243. 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/QZWV32489961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb21652118d938367cb4d09c88bdbb65e781d069d97c420b0573e63ff1d86c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZZEC2321825.