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 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 0x9149ade38fea3a46e969df8aaba20c42e2624b9f07afc4c083f630c9d9f890c2. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/096bccdf-8454-4776-9d7d-f36726d576d6.json and https://artists.proofprofile.net/proofs/artist/096bccdf-8454-4776-9d7d-f36726d576d6.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 0x8f2f0afae362e63582f2d12fc11eee07a5d7596d41534a1f36fadabb3c0857ba. 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/DGA0Q2384687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06c2fd8a381f08f18c267ce804060de00a5257df82d5e72ccdda04f6fc97247. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DGA0L2362820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc3f04756b258b722cab9f573d6306b92a8294fde018adbe4f7141ec8a09e64. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DGA0M2301197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4cd54fd4cba9eb7a6963465d9f662d52a2f8bd40b866b4b5d5ab33f31e2c23. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FRX762231511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4cd54fd4cba9eb7a6963465d9f662d52a2f8bd40b866b4b5d5ab33f31e2c23. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/FRX762231511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51321c19c1f977bd868720c1582b93889ff76f8da82cd94e8342ad0873edbc50. 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/FR96X2147006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13d13cdb7a5dcabaf49d263f80df3ec8fe861c312cd39d2d0bbe9d42862e62d. 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/QZK6M2031779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f530daef019d60331a6b066fd7f5c2097f7f7bfdb6d66ea5d554e0a46c483d3. 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/QZHN52062710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999660b374d7bdfd1be93ff931578c3a3b6f0f5b18685210745bee4095c8043f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMANG2200528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa2c2810817960636297d57628cf7c5b34a285b2dde149982fb981f7f776146. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CZDN92400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ac71747068c685dced71a4f75ccc63ea6c6014db8ecde1dd05a7e7453a9efe. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZK6M2282930.