Uni or UNI may refer to: Entertainment Uni Records, a division of MCA, formally called Universal City Records "U.N.I.", a song by Ed Sheeran from + (Plus) Uni, a species in the Neopets Trading Card G
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 0x6d7491aa0718f410869cbcf45ebf66e65295ea7f6000c4ea628ee9ab3cf77f58. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfc9f9fd-9a15-4e9a-a685-10055a914670.json and https://artists.proofprofile.net/proofs/artist/cfc9f9fd-9a15-4e9a-a685-10055a914670.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 0xc0d49fdff0960527edbbda9d0317dfbd779f83ef1dda3718a78e6725d45606f8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZPJ32322835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe752c116d70bcad9fa5a2378112ddf71e850c4b87c76b7442dbc31db89880a30. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32354621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02af1033ae3ce37c844e1b6ba837557e169a2284497bda2d72643e3125c09637. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32334451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493814d3e47bcd5b54c6861ceecd84494abd7caaf4f30a1236401e8a975c5e1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZPJ32355307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8343c4a3e48995c7e567d052ee881f09cb735d2f0d00c57754b1914c5d5be3e8. 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/QZPJ32331394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f1895fc34816de15811b62a1c6337781209b72373820a85fbc9dbf02a0ed15. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZPJ32354551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec49856b0669ce5afafecb37d2741d1f8dd4331689dbffec3c2b0d301c952cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32347872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69ad3b97f826b9fa95de72ab4526e2f995c1d869cc4bce6f951c9a377cd39e6. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZPJ32349787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629f5f46838f1b61124d3cf51ff94b677515dbc1930b7dd1c463c4491c640875. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZPJ32353871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080bb1e4857ea017e877ae59f6ab8fec9ceddadf7ef1785926d8bacb1c9cf89d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZPJ32353941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684f73d3c0dac494109688f2b8e016fb347f58ca611051af295846649ee7a040. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZPJ32356685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd79250b40305c962a6a45b9eaf0353095373fc28899c84a7a4202350a4f18a8. 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/QZPJ32345721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05e347633d5b959bf53f05f03eb6586dc8b4a01724b347430c64f85381c6b52. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZPJ32355656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb79a3d18efa79b41ddb01095ca18b5793b74b624c393f93bec247d96a0d4a31. 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/QZPJ32355321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39005adbb6e888ece4c99df7c217d650fa8e42b267a397af89bdcac35238123a. 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/QZPJ32340509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41178de0d50aaacfb01396b89c2c2a4ebb8eb666f889cb0654ac05eafeba390f. 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/QZPJ32367285.