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 0x32c7838b346ffc9f0b2043e39bff1c43e301a22b5a3e5ba6ab4f14424e3c8e79. 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/b0e19ac2-db96-4025-b948-ac4a7ab19b36.json and https://artists.proofprofile.net/proofs/artist/b0e19ac2-db96-4025-b948-ac4a7ab19b36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weightlifting Fairy Kim Bok Joo (Original Television Soundtrack, Pt. 1)
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 0xac41daf3c8bd181ceb507ce1c63eb68f8cd89077f93f910a40916f5ca58768d3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRB471601626.
수상한 파트너 Pt.8 Original Television Soundtrack
Nobody Knows (Original Television Soundtrack) Pt. 4
The King : Eternal Monarch, Pt. 3 (Original Television Soundtrack)
The King: Eternal Monarch (Original Television Soundtrack), Pt. 3
Tale of the Nine Tailed (Original Television Soundtrack), Pt. 1
TALE OF THE NINE TAILED (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf842dd10b2698715da92e7d7f0c1d20c0347458b78a91e5c328af2931dc32e28. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA492001209.
She Would Never Know (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142466187192b1d74854a32e78bdc6c5ad3d3a783eeb4e8a6b53f42f551e152. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZF452018588.
Jirisan (Original Television Soundtrack) Pt. 3
智異山 オリジナル・サウンドトラック Part.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad4679a6650d33fd9e7ee3ae24941992cce188c5773bac71e2b1fe2e3d89b5f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/KRMIM2143608.
Extraordinary Attorney Woo (Original Television SoundTrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bb8f45e398b775bbcbe3e4bc0f434bec3999c277c0f658f9fc9d0b409a029d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2238274.
ウ・ヨンウ弁護士は天才肌 オリジナル・サウンドトラック Part.1
GAUS Electronics, Pt. 2 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ff0a12959631d1aad0c541e1b12f7c5a199c8156da3941d2b2e3f8cd440356. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRMIM2449620.
Dear my friend (feat. Kim Jong Wan of NELL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1c412b8023d35585b2daa5069cafbcdb7585c753bf8a222a366874f673be78. 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/QM6N22036190.
COUP D'ETAT [+ ONE OF A KIND & HEARTBREAKER]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca549e641ba5984fe50e52ce7a8da70132de27e16585058b843d1831767d1619. 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/KRA341211596.
The King: Eternal Monarch (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0870f10030cfd5cf2db6acd165f1fcbe46c473b59694676b8e419959c724fe66. 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/KRA492000430.
Extraordinary Attorney Woo (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ce0f997a056c226321a5f6d6e451f36c7fb9717a15f5fff47b14cd175e2816. 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/KRMIM2231364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bb8f45e398b775bbcbe3e4bc0f434bec3999c277c0f658f9fc9d0b409a029d. 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/KRMIM2238274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a077c263c3487a2978a0667dc29e7d2b5282023a9b5d1b5238bc2977c6244. 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/KRB472400862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197885ddfa2c73944093e1fd227caa6b022f87b438f3a34f63ba59ec5b073c86. 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/KRA401700325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dbb008b1e4857ff1062ce9f2f1c259324b9a8177bd590b56a01f9479612cc0. 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/KRA401400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c540bf1b906f7e265bfa70a303b08b06f131b6cf167b94ce168a8cb0a87375. 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/KRA491600321.
Suspicious Partner (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac4f78261ef5b85495da63701f11eae604fb232efe2e3bf28426c644b253304. 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/QZEKE1930855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb814b57b06f85e402e160031d604fed8624986ec4d122e2cb975f3d8cb05e96b. 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/QZEKE1930859.