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 0xddf69efe529debcf9d25c2e0c5894f5ccf0b043977965f514815d06a55d71ac1. 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/a35c4ba8-38c9-444a-aab2-de76b6d56360.json and https://artists.proofprofile.net/proofs/artist/a35c4ba8-38c9-444a-aab2-de76b6d56360.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1f238063f0cf9254b8b39c48f88ded2ec6f1139738437d79e2673bd1c08b61. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USBMF7662104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a3e3dc59ed8c3841943f77f3118898548f12a5a49864041cc82760674bb11d. 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/USBMF9422428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bc9f58a2355d8a787cd6332aa0d107a2d7b72e67b311be267529dcbf3d77cf. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:29:48Z), 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/USBMF9422433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437b0ae016528fb2c22f0056bed0e44df715798d0d45affa153ba8db6aacfb27. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USBMF9422430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e38c520b5297edad0a6e4834f9da0adb6da0429879738196f445fa8789018e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USBMF0668103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466cec989595cf470898b732e7acb90d55d1653ee432081fd60627e312ea68cc. 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/USBMF0663001.
Works of Habibollah Badiei 7,Pouran & Radio Orchestra/Songs Collection 2
Works of Habibollah Badiei 6,Pouran & Radio Orchestra/Songs Collection 1