Hina may refer to: People and deities Hina (given name), including a list of people and fictional characters with the name Hina (goddess), the name assigned to a number of Polynesian deities. Hina
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 0x96d52263bb5eec1b42ca7c0896d113d33f3c4b41f4e0f078d657269faed273c2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09a53361-12a9-4a83-b031-1c7a0e50f6b6.json and https://artists.proofprofile.net/proofs/artist/09a53361-12a9-4a83-b031-1c7a0e50f6b6.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 0x570b154018520463d58ba48860a8a896df855d714a258b48900594575bab4958. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX452332468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966376775f1f78a2dd7b660a3c5f4e7f2b107b5a7f2d179700baad9696878cf8. 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/DGA0L2319466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609eb57e0264593e7a067a25a7f80c51be689a201f87e0cc4211b3f6d4a9f6a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAGW2364586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b8aa501bedb2e5debf76228adef2fa89f35bad360553db6c9b6539c16f1a70. 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/DGA0Q2390414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232102667164487fb1eae9d52ce7da5e715de99525ed43464840752e873a0654. 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/DGA0Q2390415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb8a73bc1319472a259882ecf86bef6564c4135e3ed81970e97e14480a61d5c. 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/FRX872363583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197175747f8aa597a9f56bed7d80ec7f34017fbc4259c7f26b358cde02d6a22d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DGA0Q2390416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87754dc8fe8e1c4ac9350f452e8db8bfd32ea299448469d031720a2b9919cfa4. 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/QZMEM2474327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966376775f1f78a2dd7b660a3c5f4e7f2b107b5a7f2d179700baad9696878cf8. 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/DGA0L2319466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f48154d94e265b7891247c62d7491f50ddc3d84d43b9fe465b98ccec266f27. 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/DGA0H2379706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e1d348c9fdc3643b6e94500459773c4ba25bdb9e5af00b95ce79b9a95dd301. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DGA0H2379707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb8a73bc1319472a259882ecf86bef6564c4135e3ed81970e97e14480a61d5c. 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/FRX872363583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570b154018520463d58ba48860a8a896df855d714a258b48900594575bab4958. 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/FRX452332468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609eb57e0264593e7a067a25a7f80c51be689a201f87e0cc4211b3f6d4a9f6a9. 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/TCAGW2364586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507201bb405f2e23d271235ec1fead30f79bf8ca0debe54db9319bc590ad88c2. 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/TCAGM2265703.