Rosas or Las Rosas may refer to: Rosas (surname), a Spanish surname, including a list of people with the name Rosas (Madrid), a ward in San Blas-Canillejas district, Madrid, Spain Rosas, Cauca, a
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 0xeab1edb65834ce4b6b0378a609647b875a74d15416c09bd4bc90fdbdeb00761d. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21c33022-e93d-4b7e-95b4-87556905dcd7.json and https://artists.proofprofile.net/proofs/artist/21c33022-e93d-4b7e-95b4-87556905dcd7.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 0xf0740c275dc3d6cfb99e6e739fda70f122fa83c0bcdea086189cde8ed361967b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMFMG1533471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e3dba543c82fdd32c359d15110104b2d00f9947c074a6d955bac8f0868ae56. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:11:30Z), 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/QMFMG1535693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e926d11c2737c3f6c015588f79fb84bb16d17b607a83dbbf3157f2ded2eec26. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:55:29Z), 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/QM4TW1656371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4ce3cf9d59a33af2c1595757f820a480f6636b1763bf9250d57ad8f9ab3cf0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY41965195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92896f9218d2a39c71b464a7403e335f14da242b3c5572c74d2fcae84e508f4c. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USCGH2035447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d16a6b0b1a9da0807d248959623686673f807b40ec92a2291b0944d4d0eeef. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDY42457704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c1fa594efa5226b76f89ead299308e1eed8e2e4f7bbde673460cb9f3161dc5. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/USDY42457707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15ef189a4bcc9e6a41c24b628117dd14fff48c72e2c2686bb78a1f0bcba1719. 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/USDY42457711.