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 0x993613958aafc93a8c1cf964850eee42c2fd3ae2b7b85f68eb95736c7f1a56fa. 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/737418af-99c7-44a6-9d0b-9619e26ea1b8.json and https://artists.proofprofile.net/proofs/artist/737418af-99c7-44a6-9d0b-9619e26ea1b8.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 0xd2f2caf21f003624dc709f4704f8e11d56d492337950a87e0d0f3235936f43f1. 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/KRC091862529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0508617175401289f2fb00090b94fe4345f3cf521575a6e49844b2aaf823b3. 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/KRC091846912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc5fd345625f2025e23d2b5a32cff16f3d8c80e22ed35f9435032655234a063. 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/KRC091861421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcec272f6d732f3d044dbb4a12e427bfc11b60c080f9897878f72fbb120a0b1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRC091861422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dcfe5ea642bede4578c0668312453eaba363aaaeaa6c2be50f437a93ab212c. 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/KRC091846858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62bac7c610b2465f0259df3862dd1c57e562e3645481cc897c224637768b5c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRC091846678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06dfac4c3a4aa72913e74ac5cd5aa5e06ab716404f110fbb01d9441bf5ea386. 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/KRC091861424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67d93cd1721249a84c0b9794fc984ad878621d4d8baa16c01dae817613e9c1f. 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/KRC091854827.
To The Lonely Red Butterfly (2018 Red Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb9f4c8273a99dce3313ed8bc14f12611f95d7879ea23ae929fc1da36e2cf06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRC091854834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad9d1b383c464ac8cbb905d81294070e5cb333fbddeae554a19df160f427d00. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRC091854839.
기억 '아픔으로 부터..' (Remastering In 2016 Tears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3e409adfa5af77325e035554f36a42fe89ea189db5202c710c5e638e76f2b4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRB922002022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937f512e3c68276b380eec89083feab178a0278d579eedd52a49bde0be94c0fc. 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/KRB922002070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32948f15e8896748b6e62147db5072a9d0b90ccd07b008aae14018c5fdfe550b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002efa5f25598eb6775380f5beddea5bfc2e7a7a347c05060357716232c8664a. 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/KRB922002072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52077b504dbaa5f5f0e76dddbc8cf0e3b015e0808b9e97779c08a102f9fcb631. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc027b609bc4ba2d1c8c8a6d59ad5cc686fe18d0d220f811b6b67f0c5091227. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce5eaae472747e5c78ab0c18a9437570bee37c3ff5e1795ef0c40d2cb9db4fe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce54c6250f048a8b397d7bb369e8b5896291b1d4d6312cd1292062230f28da5. 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/KRB922002076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4917ef7ad9574813a42aed416ca8be49e1757b44ac25c7f5c671f81a403fca6. 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/KRB922002077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ece7589de27b6226301a7c38f2e81c4463ca770d3e633066218204ab882a332. 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/KRB922002078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc361fa42bc377970b7d46a8e4b49eee1966875f608b6ceb372ca18000357bb33. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f24e1198b16fd6b41c26939aaff5844792294947d72cfd7a21c6223ba01b839. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRB922002080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6e26cd0bee9f78e0227251af4e874c9a8015b3434935cee59f191c81cf8ca3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7029d25f42ae04c0e8290060e1915713fb9d0968e360f097fbd75b3ba61c7031. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a56dfc33cb2076d31dd47e37c29063b620b6c95c8101e1a6f5782192debf9d7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14178e834dfc0849f7fcf4c4ac968013a20bdc92b339fef6c6bb023816da9489. 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/KRB922002084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61fa77794317169c5a410ae28efa46d2f2b0b9da67fc370b9a0e7793e0e8ca. 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/KRB922002085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a9685ff496b545a0685a305e20f35fa1305b659a627e9baa7aa4159289c77. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5d8cab6b1879096e51b4fbc66dfa48b1b374fe563ab3c6a03ab4dfdfb48345. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b6aa7ae571bdaaf4e46180770e8f8c9af578062029ac20422448d14aefa79. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRB922002088.
네임리스 Piano Collection (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d4f5aa93db69feffee86dd817a0c83f214d9ef0bedeac336df4270838ca8d7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/KRB922001962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bf5cf33dc54c9c7505e09e1f2f08980a376236a99fc5886783a750f0c77617. 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/USA2P2314732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab3dcf22c50382b7f8b7abd1278126d981afaffef8e023f8e0dc5d59b15b2e2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRB922001956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd8188803b52111e021fee95cb779d59bab34bf5dd436c2348534afc460530f. 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/KRB922002063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747179347e98afa6ae9718439aaa5bd3c558a670115f1798dfe720e803ad465f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRB922002005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d76d1e885b437d850f2127c91326334d0e061d79e0b3c01f96defd0b305905. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRB922002015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62bac7c610b2465f0259df3862dd1c57e562e3645481cc897c224637768b5c4. 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/KRC091846678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede91c03f1c15ef2153be9ab88a1b0650b7a774f11d0b36cf663bf1387205b73. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRC091856037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b5c9de91b5bb8e42f744c07c21deaa3557edaa6de0a0262307ea5b30c92a2d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRC091806108.
Me, It Was Me (Moon Rising at Noon WebToon OST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352ec479710fe2025a7ab19d4a239dc9d174d25e387c4cd93b504593a9c55ce5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/KRB922001736.