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 0x36ae07be36c55d18e80a8d1e02dacbbb593c2857a547b46af65770eceeef926d. 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/f94c0174-a200-4ae1-91a9-4de57e7951b2.json and https://artists.proofprofile.net/proofs/artist/f94c0174-a200-4ae1-91a9-4de57e7951b2.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 0xad5a76ef3a9fe81125d056d0a0ad9662ff8d26e079b1883c485e83133a98aaff. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRA341634767.
The Missing (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9032c7bcf7e7f2663091b28e7abc72465bc19cad291a53fc86bea9fe1d9fc68. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/KRA491500144.
Signal (Original Television Soundtrack), Pt. 4
덕혜옹주 (Original Motion Picture Soundtrack) - 작은 꽃
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb907f48a80ac3c9880730635145b3cd84c91c92d706a4e608c01c583d32f97ca. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/KRA341600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257c2001568b237e421c6217b689a9ebed9af1b1436bd8bc1ddc28b3d5aa06e8. 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/KRA341623116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8201d5ed6a7de9efbf700dee3f645b08b9540e53d245d0ab8cb3ceabc11896ef. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:31:49Z), 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/KRA341600409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc07994301e829dc5f63a5b8b44ba23cfeb9ca36ac258e44046c998a3301e45. 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/KRA341600411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa431eb8e3177611d918ea34385ef336ae547a6d9445bb0ca6af7a2586b42d3c3. 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/KRA341651040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddca572ecbd7936136d0875857d5e30f257301b9eee74b00315aa02344f73e40. 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/KRA341600414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca6c3829ac03f034c2dd9f62a95bf73d7bfa8fe58af0e759723969b0574160. 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/KRA381700301.
Voice (Original Television Soundtrack), Pt. 2
Mother (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387ffa2954583f0a67e6dcb02a1d8c05b7098eb0a0ddffd6880db257eb44a477. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA491800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e3bcec7c0cdc60020cd0fe4f878b6f221602e1cf572e6b6199bda6d54eec61. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA341760962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f34a7d62ffdc3acc322a183c550f78bb97b4bfdf9f5fe8df737e7502576861. 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/KRA341760964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5ec2fee52c2a266bb738ee0ee8db1484f246ea63fcba32473d085abd1a5158. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/KRA341761114.
Mr. Sunshine, Pt. 3 (Original Television Soundtrack)
Days Without Tears [From "Mr. Sunshine (Original Television Soundtrack), Pt. 3"]
Tell Me What You Saw (Original Television Soundtrack), Pt.1
Tell Me What You Saw 본 대로 말하라 (Original Television Soundtrack), Pt.1
The Cursed (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd545ad9cd14ebd3dd41bfe6ca8db484ce00b8f1b7d037744571b7b8eec810fb. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/KRA492000164.
The World of the Married, Pt. 1 (Original Television Soundtrack)
The World of the Married, Pt.1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11afff9419a3b138c037bf93f06c68073208d2795dea717b440fcd262c41566d. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/KRMIM2006676.
Mine (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86732ec04d77f26a60882d221e6fb045f5f08ab6081c311a2dbeb10322474cda. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA492100709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c2f12712cde858c9d169267e04b3d9ecab4bb12cdfd456c1c43517a132d10. 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/KRMIM2135637.
lost (Original Television Soundtrack, Pt. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f89ae23ba729fdddef71387a6aece420861e778d19c24041346dfbcf22c92a. 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/KRF702100260.
Plum Blossom (Webtoon 'Return of The Blossoming Blade', Pt. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc435f6ceeed4e055c6c2d00da54a69b46146ca40ab920aa3158f9107364baa45. 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/KRB472400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba45e838d975700a009e577fb27182e5d8363c79f934a55f91ea9b1f5c923b04. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/KRB472400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d15620370e1b6056f72bf1fe13d298f948789c77927cd16958724acd2f7be8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRB472400601.
Bitter Sweet Hell (Original Soundtrack), Pt.2
2013 G-DRAGON WORLD TOUR 'ONE OF A KIND in SEOUL'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb694b14a15d25e4966abc6d6c550ba7a5c4ebcded78f8451167e1868a38e8b4. 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/KRA341320082.
COUP D'ETAT [+ ONE OF A KIND & HEARTBREAKER]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c49ef91ea273382129265a6f2d4a8875e2f2d03adaf7f2fb564e71323f177a3. 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/KRA341211595.
Mr. Sunshine (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f91dcac0e2adf422d60b9b994617498f7ec45f32141e43e53eb73f9bd052122. 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/KRA491800668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d4c12d1a50c753c4eebf76ccd9f1ab538337220b699267f4155ad2b55db8a. 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/KRA341327919.
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