Queso (Spanish for "cheese") may refer to: Chile con queso, a cheesy sauce Queso Records Queso blanco, a white cheese Queso Chihuahua Queso flameado an obsolete TCP/IP stack fingerprinting tool
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 0x64b0766be4e441a7ce8ba7291cad3653dd6663f94baf1594821d564e47801a94. 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/7a58ad13-1df1-4381-8d8a-b1556ac6acc5.json and https://artists.proofprofile.net/proofs/artist/7a58ad13-1df1-4381-8d8a-b1556ac6acc5.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 0xfed9b3b42a6def5dbac84a45f821425e8660ef86aad1d7aa17f95cb8320fcfde. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/PHW019900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13ab79514eb38915d9a4014bfb67d1da7d7c4d30604f80b18642ea7089f498f. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PHW019900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227c36181772a7140fa4a5bc281c1bf4af64bb38d14a1d81ee787513e47a7a4b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/PHW019900355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa736dfca245e498f919c539c98f04a62b50dec79fd983a54a494c4329a9984e. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/PHW019900356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b71574866180fa7b4f4ccf993ef4f58e8849f898690812068b572983a934c4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PHW019900357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1d78cdf73d1a35ff6ed0d275ceebc5db5427664a20e729955d2c5b3515b0af. 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/PHW019900358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e43287db67f0e8dbd31ce927dc74d67292a0b480b6bedb9140a32e7b5a6932. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/PHW010200542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53882d819ce2619d5d3456adfd5681739a4f64e8e42bd4574884a90186a602c. 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/PHW010200544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe816bc8f79dae0b04f7d1c47269e5b1628255ad7c7cec8e0532481ed635b0fe8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PHW010200545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd180dd499f5b8b30ddcb364bd37d248173e0ca258ddc998cb657d27979f79a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PHW010200546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ded8233c4b9b6baad4928b693daa96497908cf71fcd878462d36773a84c10b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/PHW010200547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c68ea081ebd0e1c5fda9695a97eeb18520ba6b7fa7663a0686e171fc9f093a6. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/PHW010200548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427c9f4fa42d75d65d797d2b69f3958a2a92b4cae0e9eab7b870d8a49e14cc3a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USA2P2357109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3111743cd585a58a6dc0b3650d90c8deea20f84b19cd68720343cf4af168572a. 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/USA2P2357112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19bd6e355e1ecb08fa6c420f114ee99c326b81527e590f3b149d15d1e1bc259. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P2357113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a93737e0f5b167a395124e6a95fc61848686e2c24737d36448bd9fea3b3a7a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USA2P2357116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce96ad51c2ce692b18c105c814cf251dc3a6bb07cbee5f82de471aa31d533032. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/USA2P2357325.