Parsa () as a given name or surname is from Persian origin meaning "devout, pious". It may refer to: Places Nepal Parsa, Rupandehi, a village development committee in Rupandehi District, Lumbini Zon
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 0x6ca408b0ba516790245db6c83c04c2f7f264d642ec27cd4177cdd16b35fab503. 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/c23558b1-af96-45bd-bf3d-afe86aaf620f.json and https://artists.proofprofile.net/proofs/artist/c23558b1-af96-45bd-bf3d-afe86aaf620f.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 0x34713991df7a07b73a51ab8406a6e4559d700b46c5b353512a7d5681f2c5638b. 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/NL5MF2100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf38c239cae0c3ea8e1703523f808d20647643841cb1c77ebc16bede07f8e3f1. 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/NL5MF2100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515b087d2dcff404a49d3af5555a7b618b1b62a1896e5229a6b7c33e8f91a245. 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/QZTAU2246383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bf5270bb4f3770634f0d4af7e329de737d414b608be47171236ed0f694ef4e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/NL5MF2101440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1188d5f6b1e4f6d1e5eb7f88aa4e74d713209eb72d79e45373103c0fe74f79d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NL5MF2102207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1cb294e2f33365bfbc3121c99459f6c0ae57b5f245523305abdc6b695944e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/NL5MF2102325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27836385896e7f120958843b9d4bdb2a52bc39319a9560035806be42a38286e2. 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/QZFYZ2431198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6f86c3db01e8a55d7a370e71dc75d6373562a1bc89c37976548df39f1009e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6H2475096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e10d1f62636651d2f67ad1dee3f8045f25fac9bc815363461dc6c6ceaf246e. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZTAS2498628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e37e2701049710f5c6c2345aa8548c687ea2ebd84fc84d1697a978633303298. 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/QZWFE2481644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d93c33aea491bb454b053b5c6fa5f038787cce5c1c7c571fa455b8ef231e3fb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZZ792432939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ea9d5a1ef0eecb449f95641136b3feea111aed1de3c9504c287cbd31705241. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES72526872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841254fb5393c22dd2d19fd1510e7acedf41d0fe08fd5df29147fa7cd146c7e9. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZRP42512840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672f513804809a3c46a5716105d1102387ffd906d3e235782dbd1c69c0c7538b. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZTBD2536862.