1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x32c7838b346ffc9f0b2043e39bff1c43e301a22b5a3e5ba6ab4f14424e3c8e79. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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)
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
She Would Never Know (Original Television Soundtrack) Pt. 1
Jirisan (Original Television Soundtrack) Pt. 3
智異山 オリジナル・サウンドトラック Part.3
Extraordinary Attorney Woo (Original Television SoundTrack) Pt. 1
{"copyright_id":"0x66bb8f45e398b775bbcbe3e4bc0f434bec3999c277c0f658f9fc9d0b409a029d","isrc":"KRMIM2238274","name":"Brave - Instrumental","registered_at":"2026-06-23T00:23:51Z","spotify_id":"73B9qgjkNl62BrjC1pqyHg","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73B9qgjkNl62BrjC1pqyHg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73B9qgjkNl62BrjC1pqyHg.
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)
Dear my friend (feat. Kim Jong Wan of NELL)
{"copyright_id":"0x9e1c412b8023d35585b2daa5069cafbcdb7585c753bf8a222a366874f673be78","isrc":"QM6N22036190","name":"Dear my friend (feat. Kim Jong Wan of NELL)","registered_at":"2026-06-01T18:58:21Z","spotify_id":"6lUjwGIRWdcowZJRZrpqEr","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6lUjwGIRWdcowZJRZrpqEr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6lUjwGIRWdcowZJRZrpqEr.
COUP D'ETAT [+ ONE OF A KIND & HEARTBREAKER]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca549e641ba5984fe50e52ce7a8da70132de27e16585058b843d1831767d1619. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0tsbMAxGvVrTTufKgcT7Q7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tsbMAxGvVrTTufKgcT7Q7.
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7jHGlavga3GQtk6mlshN1t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7jHGlavga3GQtk6mlshN1t.
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2C7eqJRCFSmH7DXL7REglg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2C7eqJRCFSmH7DXL7REglg.
{"copyright_id":"0x66bb8f45e398b775bbcbe3e4bc0f434bec3999c277c0f658f9fc9d0b409a029d","isrc":"KRMIM2238274","name":"Brave - Instrumental","registered_at":"2026-06-23T00:23:51Z","spotify_id":"0qe45tQC5ojfLSpxHzANST","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qe45tQC5ojfLSpxHzANST.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qe45tQC5ojfLSpxHzANST.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a077c263c3487a2978a0667dc29e7d2b5282023a9b5d1b5238bc2977c6244. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JxNvjOKluGINwPAiql6MU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5JxNvjOKluGINwPAiql6MU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197885ddfa2c73944093e1fd227caa6b022f87b438f3a34f63ba59ec5b073c86. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cZwhT1ev2tUpPuRZJH8Q7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cZwhT1ev2tUpPuRZJH8Q7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dbb008b1e4857ff1062ce9f2f1c259324b9a8177bd590b56a01f9479612cc0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ohyT60P2aaBfrCSPg6gal.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ohyT60P2aaBfrCSPg6gal.
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3bG8MFdLEqTXFtUkr1UrXW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bG8MFdLEqTXFtUkr1UrXW.
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ODtbI0Sm7R4qfBq9CJa5p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ODtbI0Sm7R4qfBq9CJa5p.
{"copyright_id":"0xb814b57b06f85e402e160031d604fed8624986ec4d122e2cb975f3d8cb05e96b","isrc":"QZEKE1930859","name":"그날의 기억 Acoustic Version","registered_at":"2026-06-18T11:28:54Z","spotify_id":"44thbuWOGoSaCVc3AmnYm5","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/44thbuWOGoSaCVc3AmnYm5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44thbuWOGoSaCVc3AmnYm5.