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 0xfb2d03ab9b9756f4c7010ae4e7a480d8b09b3e10c42f305a1f0e492e2b2ec9a1. 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/f29fb9bb-3945-483b-9563-30f79ff2a1d4.json and https://artists.proofprofile.net/proofs/artist/f29fb9bb-3945-483b-9563-30f79ff2a1d4.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 0x673cd1e18f9fb84ecffb2beff690f95bc8f777b796851f9769c4c27e082a29c9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRA340913205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a65d633aa8f6aa74dbfea8b21cf2552306960d5865d788b09a582c4b3d274b9. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRA340911235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aa472256bd00d7e82ad205d39198cceb78b713164c787ddbfc9641de69af41. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRA381000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571c53d283c9091b37d8dca50ddd24fa179f5de0b7586615db1dc131378693c4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:05:34Z), 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/KRA381000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd30bf210b8c57495ae69715642f6d1678655b1ca4632742b4bb8aa4a9c50bb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRA380901624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2040b50ffd0418c5209c468588054fa5f5aab55af24adff94bc8bc66a1de2ae. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/KRA381201491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2859e59746f0994e0c3f4ec52f7af1e1eb42f0ca289512a747aecf10ad08fe5. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:07:09Z), 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/KRA381000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aa472256bd00d7e82ad205d39198cceb78b713164c787ddbfc9641de69af41. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/KRA381000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b54d2bc438537e7c600db4ceaad67046435b8434f7ccb387736bf9ad5d39e9. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/KRA381000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8602a4640c76cfd6d8e11aeea7aa0d02ef8299634f5d3d1eae2498703937d8. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/KRA381000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10964caa9be392b1692fd384f1c483a5e5f5c82aac3ac1a7fe7dc2d1c805f830. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA381001581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09274ff23b69d55f6864e4061e7266b0e86fd98e373907c8dd1cd3d9bc40ff2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRA381001584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa15f26cfe333536893fe3495be9df41afe3e212fd67529837f518b47782fd26. 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/KRA381001762.
The Princess' Man Pt. 1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80c7bb61864c8f34b500e82a10f344e733346f7e73e5b70bb1664535b7ccc9b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:54:05Z), 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/KRA382321928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7774a74fc7ae1f154a46c71a72e59076ec8736124b5939155208eadeb0c84b4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:05:43Z), 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/KRA382321929.
Good Boy (feat. Yong Jun Hyung of BEAST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439cfce06f6c215f12f4e6b68b5891cfc87aaa7614300c5edccc06779c705c2f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/KRA381201001.
Arang and the Magistrate (Original Soundtrack), Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd12d6f879bec9b7cda6f7f21645bfbe1193a38fed1a23393040ee592ddc543. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA381202537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e18c8d6c99c19fa2298adb959bafec7ae4ad52aff460bdc59e588a8bf6bcee. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:48:42Z), 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/QZEKE1808098.
Doctor Good (Original Television Soundtrack) Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5486754b372db012ff226b405756a12ecbde6521255d2a5fb05e0208327723c. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPTE01211920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb870eadeba9b310603ccf8e1fe1126c4f119f21f708c8df509d0affd441bcf5a. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:24:20Z), 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/KRA381207607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b82cae1c1fc4e0deb2c64359d18b88ad7a0ebdec8f1b6733e942b6e3e09ff4a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA491402624.
프로듀사 (Original Television Soundtrack) : Preview 03 - AND...그리고
Calling of the Heart - The Second Story Part 4. Faith
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203db9a9ebb6f65b09dc85e0995c625c8a9bbb4653dc95b1debb8378c1d7339d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/KRA381600319.
구르미 그린 달빛 (Original Television Soundtrack), Pt.9
See You Again [From "Mr. Sunshine (Original Television Soundtrack), Pt. 11"]
Mr. Sunshine, Pt. 11 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183118272f8b936cbb731a2e58d483ee59c63e1e25286b274d4d1576eeff14d6. 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/KRA381904399.
[Vol.42] You Hee yul's Sketchbook 10th Anniversary Project : 22th Voice 'Sketchbook X Baek Z Young'
The World of the Married, Pt. 6 (Original Television SoundTrack)
The World of the Married, Pt.6 (Original Television SoundTrack)
Him-na song Label Project 03 - Because you're shining like a star
The King's Affection (Original Soundtrack) Part.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736e023e129d87f83c6847816a2a0c96175dbca4582f27d2f6c9934d0a98f9f2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA382163296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736e023e129d87f83c6847816a2a0c96175dbca4582f27d2f6c9934d0a98f9f2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA382163296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39e1bc6f8efd42e1b55b95ddc98a67bc28cb0ed46f692fc11b956b48476147c. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRMIM2162646.
Our love was pain (Nth Romance X Baek Z Young)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887526ed0545eb37ef8ff55b3d0d3c0459dd241358ba437b3bd411476c89597d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA382163939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87c5f089c9ae3332c94075b1df6342f08b485b7f1ed80062be489986e4adaaa. 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/KRA382205539.
Waiting Fou You (CURTAIN CALL OST Part.1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64f5ab57690040982c970098eac171a7d1b55a5d8acd0992877185c3e8b430d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:23:00Z), 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/KRMIM2479035.
Garosugil At Dawn (2023) (My love X Baek Z Young, Yoo Hwe Seung (N.Flying))
Moon in the day, Pt. 6 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45e7e9c57415a69e0f274c2f680fd2784001644a8746bbc072ed714e01eb584. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA382401837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa82d35fd0d14657926d4dea1b86f97ab65bb6db5f52e7637e1184837956344. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/KRA382406644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd94b925d6bd6b093b82ae8c0f76a2fa95a317d889313e43577e06e539644c. 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/KRA382406645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf38cd550ff4768850c240a49ac6c5bd93913372d2261ff8b3469ce59b7e2a5. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KRA382406647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6853cb495ed154d22161c97fc7bd7566af2cd072d3276d313734dcb6513aab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRY661430194.
The Producers (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881ff5e1c466921355d1d5c59fdddc2ac98d25d7f2a3123d85fcba5e4bb7300d. 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/QZEKE1878645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b68888eb714fd1b220c17534d1d8c178eeb02ee645912fab4976abfbf3188f. 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/KRA382103832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a887c9f3214118c5337d15d0ced8ba833ea0576ad52028468989bf1900572. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/KRA382103833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57875393486304690cc33076bfe6406815b665b1efc743d90926f17de6ad878. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/KRA381000030.
Goodbye Mr. Black (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc1dcfa26193e50693124ea0b4a583240ace0559b1a0e65823398abc11a012a. 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/KRA381600972.
See You Again (Feat. Richard Yongjae O'Neill)
Mr. Sunshine (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24b28dfcd2f99d32d4abd4f1771de44d754fec782ec6bb0b6d70dde25de16de. 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/KRA491800799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6634dddb4fd07e819f7560b57832432c0b7ddfefe5b65a861280df7367eea2ea. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA382007252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c40cc669ce5477433a6fb80a88f21bc32220aae3118099156aa3d6155960e2. 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/KRA382209779.
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 0xe670bbbcc8ef5358891cb7d9c750024ed3206f8b95e3b835bcacbf7b652f6edb. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/KRA382103834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cec40ce4d569f341757e1db69ef7a4893cdc0e9ede423451e5637695ba7831. 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/KRY661430107.