K-otic (เค-โอติค) was a Thai pop boy band consisting of five members, two of whom are Thai Japanese and one who is Korean. The band debuted with the single, "Ya Wai Chai" in March 2007, releasing the
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 0x8ba94e7f53c9d3dd8a4216243821fb328a4ab228d0aca3253f27cb94358b1892. 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/35962f2b-b889-4723-8a9d-5ab5c7d86abb.json and https://artists.proofprofile.net/proofs/artist/35962f2b-b889-4723-8a9d-5ab5c7d86abb.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 0x9eacc8bdcce045fd1c651920c177da1a0ceeb034eb81c9a2dc6951d5e5e31fd8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLA370100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e2f3749654330f8d8f1a0e010a025158fdc1912959dd4880029d7958df30d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLA370100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ab074e0bf96b8821bec8dcf00d12509cbd815859d058cf2d5b8da5679f5f1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLA370100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40e21e1b0c16544541e0a297daea3dce14c605f26510843847f12a1d748224a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLA370100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffbb5982c371e2eafd482b7dbd68f83a7aa8293424e5c461e2d60fb3cf6cc49. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/NLA370100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5bbb7ad12145e71d87996afd4589c8074146ce6ba8a61ea1886e4ae9998e00. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:22Z), 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/NLA370100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e41574369d887141f65fff787aa7f507ad32483778aaa9eae1791afacb6c3e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLA370100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b5bf4ec73724a309bb8f1eb602a23a7127b7a5f85404a198e38a59776a906f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:26:18Z), 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/NLA370100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495d324a549ead372d95b64416384c05d4d695a8666b0af2744bd59c75a1cd1f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLA200200552.