Barona may refer to: Barona (district of Milan), a border district of the city of Milan, Italy Barona (surname), a surname Barona Casino, an Indian casino in Lakeside, San Diego County, California
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 0x2098d295602d45844cf4b456a99bebf4f36918b1e3a7c68afd706b9d41c5be0d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/915b6ceb-3c67-4f3e-be17-d13f458483dd.json and https://artists.proofprofile.net/proofs/artist/915b6ceb-3c67-4f3e-be17-d13f458483dd.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 0x91f5085a63d762353c3f73465de936238b9a04144464a9667841eda9a7b2b8e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMZ92252365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf379a123595e24b06f0f828f672dd4058c6ebc88d5443d8cfe1f6c4573831504. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZW9L2249119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59f2d428b995f0dbbc6e02c09b8ed2315249c85318b63877d5a382b377c483f. 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/QZW9L2249120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e345d4628c5b5818f8115120df1c1f78cc4c81848c38e88825b53a6acc53e89. 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/QZW9L2249121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e72223904796da499413510b29bae5ef26108cf299defd8e362aed03d3fc330. 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/QZW9L2249122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6096d3ed0517b282a44c378acc45e26d1664150edf7e6c7d7a96335034720. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZW9L2249123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d23addcc7e7087847ac25fc4bab3030c11b407f27ea488caf1ff4db100883a2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZW9L2249125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117fcdb328949f1c7ed55f9aa74281f921f56368d297c6e48493e119473eb924. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJW2471127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1affb6cfb5857d36a56ce5c016757338437795ddf9dc66c2e42a6ad0ce009bf. 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/QZNJW2471128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba6c48f20b5a27a643b787871201be2e3f856fcbaf599e3700edf1fe4739d9c. 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/QZNJW2471129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2efb43509b733f596a3415a24ecb324458b837a9387ee938920bbb44b847d8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJW2471130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831a9943585e4c116e5d84f69b5591aba4dbc874f06258386d62e6af038c27eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJW2471131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3cd23583f8533dab2bf1575f26e4d5d139212e5e93e2776a76f0f5f4618024. 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/QZNJV2435906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e41c296f20346c92ccb500b3622a35ea6e5d165fc7fc80b7e2c48e062cec1b. 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/QZNJW2471132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274920c2157b6619abf989bf33aad7a95a976550095cefc3d1d60ce301eb8704. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJW2471133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c907fd660f630a5341bed3dfd0c53c81633905eba6c3d902d2cd6a59b00fc63. 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/QZNJW2471134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1affb6cfb5857d36a56ce5c016757338437795ddf9dc66c2e42a6ad0ce009bf. 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/QZNJW2471128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce857ebd28f9edd33aa94f2539f826baeec23e7efabd670566a75d33841f114d. 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/QZNJV2415731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251d75ca33c1a69f29b32ef90ef6e47875b475ce66105246d709225714f4338e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXIV82421842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3290cccdd9221a84f08d5fc959aab294c22a6426dc06724e21d3eb2b2e1f397. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMZ92463887.