Cabrera may refer to: Places Colombia Cabrera, Cundinamarca Cabrera, Santander Dominican Republic Cabrera, María Trinidad Sánchez Loma de Cabrera, Dajabón Mexico Tlalixtac de Cabrera, Oaxaca
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 0x800f27f0754f2c702fc712b85124265ff8c8dca98dec62c8878511f75180a946. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f149f05-8598-4d92-9291-06a55da807d4.json and https://artists.proofprofile.net/proofs/artist/9f149f05-8598-4d92-9291-06a55da807d4.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 0xa5274e9ee21a55753c0dffdaf70aba4dab0ee946c943e6bd2111f02dd55acdf7. 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/QZDA82433855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a18973eff03d1501c3278f31edf6cc0a2f5b3b72566e5b43d9dea070c8d796c. 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/QZFZ62409463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb620f7d69ea4e66826c0c6e0c02ffe28950cae9aa156425fd9f8ff0027a149f. 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/QZDA82433857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6891eed885fd8ec66649b5d8eeef62d49da39e06e0d28bf2608f33d09558ba67. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZDA82433859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc428d1015021ea4e3d7998dc0c87dd1b998d91dd6380fb29719990f09ef6c916. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:47:43Z), 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/QZDA82433856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c21033d93b93d22fd865b626fda71e81b23b5477dce2dacb9197838266f8b8d. 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/FR2X41751542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fde665ebaccb52211db2a3fd3bc5df5515c6bd87a13406c0b3c1bc4e2a4771. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR2X41751543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79c9fd6b85e93a8f862ddc502f7af89d47632305fc82b3a520c7d28f9d42435. 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/GBSMU3404841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3d37bdb2ede797249d600053d228cfdaf555cc9886dd4080eca0d5c40d2010. 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/GBSMU3404843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c148e29163335c7485029a730c1b98975398bfb046ed61da09362b922485c8. 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/GBSMU3404844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadbdce026de69ac267ff6eb5938f6863812f3e3d61db89cf920f6203d1580ce. 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/GBSMU3404845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df5420c3183506812fd0822b573d17b19203a644ef10faada406c34b1db6cdd. 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/GBSMU3404847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdc81615dd273abe54cf03309f4373b44ca2bcf409b346f08e4eb446f4e6ad2. 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/GBSMU3404849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290d336b0f5068f098cd803953b72d0f6c7e26a6e8e1cdce1ba6644937ab2e89. 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/GBSMU3404850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6b3890f7c947c9fb967d43bd2bd9549262e205e0e6d190ce93bb6f355b054f. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GBSMU3404848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a18973eff03d1501c3278f31edf6cc0a2f5b3b72566e5b43d9dea070c8d796c. 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/QZFZ62409463.