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 0xecddce12fd4ea0c3190d4057fa47cd28dac8405653863cb73f935cb3655cd80c. 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/18dbc17f-9750-4bb9-973d-e7c53af7740d.json and https://artists.proofprofile.net/proofs/artist/18dbc17f-9750-4bb9-973d-e7c53af7740d.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 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 0xacb9ca17ddc3870c2da2f6e03a3f1305134a3e863bbc64acff7fb5782080e43a. 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/KRA381209289.
KPOPSTAR Season4 - casting audition Pt.2
Weightlifting Fairy Kim Bok Joo (Original Television Soundtrack, Pt. 7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38ab3e98e6040b09b8a5f9b19389d7e8a5f6eebbc8b533f0d17fcbf4c0a7edd. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/KRB471800953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361268044d5ad65e8b325ae585e35cf835eaf3eec28d5b7613f1188a8fc42d5b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KRB471800954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92d40242bc9be17c7e2b8446ec460da0061a3e15e39d32a4e1aec3c9394968. 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/KRB471600746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d9d44bfc0fd4bf2c2ab06db527862e8f64bad7098f72a153727f1f9320aed. 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/KRB471600747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830e98787bdec38326c3a8815c2a109beebd64c9d597340e1dea56f5ac671514. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRB471700963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eeeb14109877ead305d78bb4ecd47f85696f01ada9462cb59bb01e116c29518. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:30Z), 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/KRB471700964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd671101677fbf415dd1cd233c46d31e8d7f6874c5c05d776f9325f78233ae6c9. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/KRB471700965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16455a32cca534f0c1d5584e00a943d895d69323c5996a0f0a0b50d2e64efac. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/KRB471700966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abb26dcb5b85f110b40d7341fd439abfbed76376c0d6b91a1bdfb382bcce3cc. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/KRB471700968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b628f76f76f0afe545d263160af0d03971294e6d58b541543560f3e9e2e48. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/KRB471700969.
We are (with Sam Kim, Kwon Jin Ah, Jung Seung Hwan, CHAI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8406fa44c6093e41e8ff788736468906c7419303077bb3c177d95f75a34af250. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:38Z), 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/KRB471800955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c35ae5bfc8e10d12c5be6e93d26e8aa9553fdb3dde4dc8a2e12330ac7232d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRB471800952.
School Episode: Walk Together (Music From "Sound Garden")
Tongyeong Episode: To Cats (Music From "Sound Garden")
Camping Episode: Let's Go Camping (Music From "Sound Garden")
Stationary Store Episode: Stationary Store (Music From "Sound Garden")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe173406195156a0a2eebbfbd17d56d06360f92cf06147c1f9a9e21be480648a2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:38Z), 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/KRA251901098.
Photo Studio Episode: Self Portrait (Music From "Sound Garden")
[Vol.39] You Hee yul's Sketchbook 10th Anniversary Project : 19th Voice 'Sketchbook X Jin Ah Lee'
Sweet Munchies (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6652235fddadb03f207e11e12dc8f25a407a1284ea3c74644e5143db1380735d. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KRA382001689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1569ac30388255818bd3394ca6a7ad2e11d7020400679b904d55563ad6c76794. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:11:24Z), 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/KRA382005606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b96e387a566359017570d598466aa828af2936054f1644569a5f04854c49a59. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA382005607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc8e939d6f1855ec91ca19fa8d0830ac619dc39b60ec830a370117dcd67e388. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:05:26Z), 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/KRA382005608.
Children are happy (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb25b2783ea2c60f075cf69d10c0ea495d414acbcbfd8ec65ba73d7bd40947d. 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/KRA492100545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f480bdef0635268e8fe280f74c609a669b36a04d0878b765c398b84c3395b0. 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/KRA382203000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87673dcfe38b077d03713c338d8c60ed64d0c2f9f13dbacfa8b758546c4877b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KRA382203001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4713cc479c1f435197a3b57680c8299fd4ed2ca8061292060a30247645fac6a. 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/KRA382320565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce7abd103e54e4be3a88adb44a7c5aca8b176133b878feacf20fea92a714610. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:38Z), 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/KRA382320566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf1caabc63d33c4ba17971ead6b1898745bd8a0ebe9a1da0f7af2e0661c45ab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRA382320567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0bdd1d4973a01d5459ddffa869815f243194657230ee886e82f4d47962621. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRA382320568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a371ec17baf951e3f5a698c92e193db72096f775b340b80fe1730a9acc047fb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRA382320569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd594ee51102633fe14b5021c8788bed63a78e96b2b1ee8c9f9e5e3e594f09. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/KRA382320570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80f7c8d4a2e8506b225e7d26783c9d9d2546c7ce11c142a0af766b837c4ae4e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRA382320571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8588d626f8817544f4ff4fcc726b0798c7a1132f499b50b07b07a14a64225eb5. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/KRA382320572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f64015d1ce8fc2af11016b578f5ca17bf5677fe61dfe28b536479918a96b0d5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:43Z), 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/KRA382320573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4132206ad50d62370e549d76c7dca1a033afb10ed8b6de3e1650a408bbe8032d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA382320574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e729b61de7af4a97cda95584ce4a12cca2eaa55d48dd5cff4181ead5e5b76ca. 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/KRA382402656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0a88db62c750c7dc2f99116bad7d35dfaa76df5f9e93c957212155a7cfe717. 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/QZTAZ2338010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861910a02dfe37e283387562937a35b116264501d68940904034e430f439a53e. 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/KRA301600275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2c14da1358f6facaa14638546af66e2b9121048907151d5a068cf80b52916b. 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/KRA301600276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9762de8fae61110d8b758fd98dcdb4176e42c0b24ed141bcedd16ae00ed5298. 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/KRA382001359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910009e65ed5d1e6f843b7f4bce5abff462efa1b21cc4edd96693838b83ae15. 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/KRA382163896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390037b99bc78007ffbe060a957333ccb9a4fbbdc48002820d3165c31c943e88. 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/KRA382007039.