Pucca (; ) is a South Korean media franchise from the South Korean company Vooz. The titular protagonist, Pucca, is the niece of three Korean men who run a noodle restaurant called Goh-Rong in Sooga
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 0x592d5e73c8459978485c0b2ac0ed47f70fac0b35c06359f1515a222e095871b3. 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/818d2179-48b5-43dd-8be0-be726ee2e46f.json and https://artists.proofprofile.net/proofs/artist/818d2179-48b5-43dd-8be0-be726ee2e46f.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 0x597783696f3550361526e987cbc86faa8b3b0a6325b3f2a8a756a6e9ab7f37e2. 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/NL3AA2450044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ec4070667d620548965089f979575846882dc093561eb9f68cd1cb4d5c45af. 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/NL3AA2350095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ecea82f5bf1be50ef6f89b1053f953ca221799bb22b073ecf973b54cb6f793. 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/NL3AA2350096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2805bc3448071fd5213355885634e920237f819f91eff84108425435a330fab. 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/FXQ892300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa981ec36a305764cefaf6b31cb199606c9253a4c3a230fe2e3f325db566f1c6f. 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/USANG2256750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4cc164ef4df21169aeace29f0b1b6e8ef1a439877e050082dcaff6094f4a6b. 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/USANG2246598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd1149e0b42a995d7730d5b2a8a659edbfd80ce18382a622a238a41e078bfb5. 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/FXQ892200529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec3f0fefebaad3f5e36789c46662d614ed542e2071772fe6f4218f62d6e2721. 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/USANG2223887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa931c887afa2137e6318d28cbe115489145ba70d3739ef8f5e838b22afb2e2d6. 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/FXQ892200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548948bf986d13f706b8041470e408e11a43510810fb322a9976a5c02e14a665. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FXQ892200118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab8a2920bee5bc8d5d122610e528f2047bcc9e1aa30285bbe6100d59d73912a. 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/NL4YD2100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83045a58e7cc3b914754abf4605550e41f24ad36a41c71af98bfd25239d3c909. 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/NL3AA2150002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba12febdec55c2f03606e8fc9eb0d17ac87d93e65b47d2ed9c2268ea9db85ab. 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/NL3AA2150003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf037383eff43f605a3aabeaa1da5c5b58cb795f612419fb0d309f87b009a35f1. 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/NL3AA2150006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e8d56262d0b3815dccbb2d2b7bfb59de7389a6c4b786ca80c201dff5080a1b. 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/NL3AA2150007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6f662b99f7d5c8a8ec3688a51c78de37475642c0a31abc25db15a0f544b720. 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/NL3AA2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dac2668051dba6f9f387f0ca9ec3017306926931d77c5ef4e5f188f615cf356. 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/NL3AA2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3bd6a20855147038ecd51177788ebb45b046b4b9d4d44c7c41b333b520e99a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NL3AA2100014.
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 0x78654a844e854f38f93a4402109827cf0bb444df75232dc72c2cf1abcc65a9fa. 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/NL3AA2100015.