thumb|right|alt=Juana is a Spanish female name.|Areas where Juana is common Juana is a Spanish female name. It is the feminine form of Juan (English John), and thus corresponds to the English names Ja
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 0x99441d04c7c22a399bd8badf12e5d536b3f491ac2009cc3fa27b3530c3b60407. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc811d12-afb1-4e2f-a45d-9d1a98bfc691.json and https://artists.proofprofile.net/proofs/artist/cc811d12-afb1-4e2f-a45d-9d1a98bfc691.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 0x4256989af8a9605f50aaa2152a99056c4a05dee0fb04c27f71bea261b1c0eb91. 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/ES71G2309918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724265e307853c0cf762765d2de2daf9e7c0906e7a819e29b6b82cd036c4ac0a. 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/ESA092405846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da63c7e21bf473fa33d3c7c3e2c3d3b77de41f828213f1dcd79b9eb9187a6ae. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ESA092405902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724265e307853c0cf762765d2de2daf9e7c0906e7a819e29b6b82cd036c4ac0a. 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/ESA092405846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f9af6b73d2f214e4f38f57f14d8ef4412b33fe69015f05b629c459efeee7f. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ESA092437652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa4b1ce9e1f908d3eae3d3a518d9ac77977f397f69bf5c787f1c904787d0854. 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/ESA092436836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8647f3efaabf93bec509b3c1f54b0d5115ba0bb208c70c692ee4951abcd4c717. 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/ESA092334928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e233fe56f17083c409d9f967859e94afd5e6559505f1cb46bbf62fd5d36c614. 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/ESA092318549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53971afc2b4aa0084ea3e3c6f64dbe88d1aa1ce43b740e610ca9d07883a52705. 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/ESA092308044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6747d86a42affa399edd74224c487ebc451aecfad737316b1a3766b2b896879a. 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/ESA092304151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad21a2d89cdba9c5bdf68224ed5318e6ef9d09108fdd11a527360183f9e7bc8d. 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/ESA092236030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5706ed9d90eb228b9e37a725108ae1b669e5558ed2216dfcde4714b2521e57. 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/ESA092200481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806bbffda4b6623c609ef4ff04b04319f9ad349d2e51529605114c4615c12ece. 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/GBMA22027606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3dca69a9e6f60e073bd09ac9956f3124ee02d20f124842ee5d3fa4433190f8. 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/GBMA22020448.