Higashi () may refer to: Places in Japan Higashi, Shibuya Higashi, Fukushima Higashi, Okinawa Higashi-ku, Fukuoka Higashi-ku, Hiroshima Higashi-ku, Nagoya Higashi-ku, Sapporo People Keigo Higashi, J
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 0xc59fff004b1af4edaaa2d98e1d63931016aca179870b8442f92996c694db9041. 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/00187544-221f-4f20-9b04-103c4b77f5b0.json and https://artists.proofprofile.net/proofs/artist/00187544-221f-4f20-9b04-103c4b77f5b0.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 0x23ebcae921aa914f69a105a0c7ff289d614557e5b19bbebaa8b8bddc9c7e0f06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e2b8baa57da7275151a774545478df25980d6bf841d68cc067bb5cd62d95e1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2de9bdc60b7971c608722b021834c19ff2a3138d7c8cb8d3610cad153af920. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b86c8b282c56b7e0346c444fc20a2792d3575b2ef8c2c31c2a2c6a9dea43b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58addb9e998acae7e21f84ba43f42cc009305536af97938696e33e178535413. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400003.
Agente (feat. Emis Killa, Jake La Furia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e6d551c1ddd53a627361a2f96a5d0609f93c1c23814270ef181dd67c6fdec8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5474e53eb6fd12f3af23a7e9147fd523aa5b9f7d7a60e2e2acbec5b4b166d75. 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/ITC6Q2400016.
Non Mi Vedi (feat. Fabri Fibra, Ernia, Rkomi, Geolier, Poison Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01abe0df7d46c928a3d8530f7af6a76e71f0dae14644c3191797aab355558f98. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d451c9cd110eaf5d33ef26a21429daae792cf9b2da573f846f4d84e0dc1dba9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfdcbb2372309eb71adbca250cc9ec05bbc82477f2eebdf6fdd785f53e7a299. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff52434bf2f06f7432fa8e0d996a30a03c6f59f21f2a1f6e630ec7a65031a75b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6177a451d7619fcea1e324bbf615a217d80396f7016609aa2e5cec126cc667d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITC6Q2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1ca9d6a2b01345b86fd77e2d46823cceef1d1dd0679890e149481eb86f48d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITO2U2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335777d001be3f4d3ebd9302f93e534a467475099afabf8793520a46f7bf9c01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITO2U2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ebcae921aa914f69a105a0c7ff289d614557e5b19bbebaa8b8bddc9c7e0f06. 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/ITC6Q2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ebcae921aa914f69a105a0c7ff289d614557e5b19bbebaa8b8bddc9c7e0f06. 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/ITC6Q2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2de9bdc60b7971c608722b021834c19ff2a3138d7c8cb8d3610cad153af920. 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/ITC6Q2400014.