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 0x9b359990293e1f2ffc15e19d7dcca385c75b4354b52063eb5f96c38598106ec0. 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/e8d34b21-e36f-4d23-92c8-bb4380d07403.json and https://artists.proofprofile.net/proofs/artist/e8d34b21-e36f-4d23-92c8-bb4380d07403.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sweet Stranger and Me, Pt. 5 (Original Soundtrack)
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 0x26dff0e73eac178d21c0a67b1a15fc3ae25f7b885ac7357be77b3e82604e7bd2. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/KRE181600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e26d94aa1b93de58f98a479b5b443eec0432edb6f37a7f86493f685b43f2d7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/KRA341766815.
복면가왕 168회 - 어떤가요 (나한테 걸리면 마이아파~ 동막골소녀) [Live Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81698350fa914ccbfb0518d18fbdbe4745b06a2b0197d59d9be05b4d85f1f47. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA341768469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318c61c63148df74d91b75ac13807b9cdcc9eaf70d7cf845c3519f15c3e7ce6d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZEKE1805260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b1ed2bbd832eb02913d51fda2677a4147912e821920a47c86bd5f85729990. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZEKE1864938.
퍼퓸 (Original Television Soundtrack), Pt. 1
하자있는 인간들 (Original Television Soundtrack) Pt. 5
Find Me In Your Memory (Original Television Soundtrack) Pt. 2
18 again Pt.4 (Original Television Soundtrack)
18 again, Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44efc6ed2fa8361fc0f5cbff981c7a02bcf78e5245ee496fca27e5f865a4f381. 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/KRMIM2027124.
The Trace You Left (The Spies Who Loved Me OST Part.5)
Remember my love (Bunny and Guys X Solji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7b0346d1f9bee87ddec4e13338c7cf5695e530ef7c8bc0440fc5479aff9fb9. 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/KRB472100936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4d7ccfe787667e979e0b82c66bbe7755649cbe3e66221d281d0edc0d128b0f. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/KRMIM2140977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1215b2d4736f80e0dbbee79550a9b77479602431792e5da5d510e0516986956. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA382203635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dcc2a87ac3ca346c26b8770574f285fedaf0ed01874c95c9825c5d542b5b49. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:00:41Z), 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/KRA382203637.
Elsword : Loadstar (Original Game Soundtrack)
Poong, the Joseon Psychiatrist OST Part.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd60b2cdb3289f428a2fb885a7bb82e979d695dc0fd6a55ee972d4b15d9d42cc. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:18Z), 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/KRA382206985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91cefcd0663294374baad0ffba790ad9b7a584aeba305677c9ac360e2989210. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:23Z), 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/KRB472201941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2e4c7c376ee3041c45dd8978f446fe00cb2212a7d9c74a14e3d7d37438ada9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA382208483.
Tales Runner [Multiverse and Dimension Authority] O.S.T PART. 1 Knight (Knight for Fight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14697433424dad0387c1c894e95a680bb69b8c2881a19f0b2639238363bc0bd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRB462300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e5ce98924723b48f519d066e33bcd8c954d4a2ee93419e0b05a69b55c82e73. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ZZA0P2309691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070b52f2e62d165754a978a7c7e121a093842e321dbdecd555f9a845e12b7e77. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:44Z), 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/KRMM02305002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcefa0fe86e00b4b66d46f5e671a1b618318232646e0243f87fdfccb12475ac2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/KRB472401754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb117c446216b6f4777fa1b93b15d126ed9dfec6fdf956e0955689051318e83a. 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/KRA382501964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03450feb3346dbf37f60a33e92a8d6dca8b2480fbb4bc47011c64d417b28ed89. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRMIM2554038.