Zuno is a surname. Notable people with the surname include: Andrés Zuno (born 1982), Mexican actor and singer María Esther Zuno (1924–1999), wife of Mexican President Luis Echeverría and the first la
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 0x384020c6f371c99cfdafc1625d106337cacfac984fdf7c8a1bc7c48b905902b3. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74e96b0b-d9b7-44a1-bfe9-4c0e806fe2cd.json and https://artists.proofprofile.net/proofs/artist/74e96b0b-d9b7-44a1-bfe9-4c0e806fe2cd.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 0x430b3c12143cf21055447d2839c7c0dfbfc6d7ad25cfc60954969a569b71faed. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITB001800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c32fb5d05a049e8d3148e1199e37c6b68aea8ec7e10a15583bd26801f3dec5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITB001800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46803fe1034bd7ca832f99b87dd147b19480cab4935fee486bbf1a0d7b268158. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITB001800296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa381f906ecca395143b480444ebef793f4fba046cfd42d81c8ab77e3559af75. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITB001800297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac52969d5376464de4f51e449b979a75509e5b661847992264f14d721f7a5f25. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB001800299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f8b6a0362be0dcdcb61de5b91856ede854a45d7f0f8bd7137a19768eec69cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IT0CF1800327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545856e6e1d091f46c563cd61b75449b3a4cfad586437061978ec5701af33912. 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/ITB561813174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3f4384c6a921ebc9b2d669d8385d6a64246cae7db0525d4ca3d2628a9b636f. 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/ITB561813175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db1797488f4252c4e3475ee13eb27efb26ca12219b57857f1d6d77f4ab30885. 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/ITB561813176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2221d1bd3a30832ced3a31f231ae250ad0dca06fe2fcc1d67dd597e6708e8297. 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/ITB561813179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cc06fc895db6edc2d01947f76b2d10c578796ccff4a2e043b286ca5dc100fe. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ITB561813177.
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 0xefd79eaee635c7b10b33e7161ca9121b6b4f4fcef77ec75347912e56fcee1b79. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/ITB561813178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5189f09cbae177d2ab0fc46a1b9568aa1b2f092f389e010637f3e73d93c9e09. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ITB561813180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a07c2a669712d63ca26739478ae1ac0c7c4221757fcc000c9250d7dd12691b. 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/ITUD52100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fffc7625bd5dec3ede721dc90e94da6d39c3294c066820775aa986706ba65dd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUD52100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c17b87cd36c76a4b9cc8d6baafcc78420b09a23434975b9dcb1b600ced4061. 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/ITUD52100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c947578cb424a79fec99542626836da03223bd38eb6c2b6a4142f6bea1d187e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ITUD52100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13c2109f8982c2d461677535c5fa94c3e40ec13cbd2576d1eed3a7959faa6c3. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ITUD52100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6daccd7cf427805dfb0fe606927f177e698a625de567338a0aebf37b6ac7f3. 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/ITUD52100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19c70b0503949edf9dbf27188b3ed390f98b28ec668771bfb25ee5eb24acc1d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITUD52000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe0685dce2d977d11a0a1286954f8c368d8121d4d40b4013dafc488d2e8ea2f. 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/QMFME1913695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5af892d8767c59a62b69ff142a7adee2ec2751ced72921eff47ee1e1863f546. 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/ITB561813135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2184921a71a5336d047f5d4ddad5bebe3a7717d8557fb318d699cc5b92eeaaa. 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/IT0CF1700227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73341be373e92c007280cbe82db1355398556596b71b77a34e3cdb8182bde3c. 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/IT0CF1700226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7148a8ea6e2980e0829237481b74000efdc7f65349ec8223eb8202e8be746baf. 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/IT0CF1700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4531a475ad33c3b270afbf0faa37546445761b0fc898ed3d9a5f253a091d18. 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/IT0CF1700178.