1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4e32761fcd437af76fd62350361e71ec30466e1453877877946954c656c025ee. 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/dbfa9821-e97e-42d1-86f9-4539ed4a2513.json and https://artists.proofprofile.net/proofs/artist/dbfa9821-e97e-42d1-86f9-4539ed4a2513.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088429379a25161a6058e57f42e6149defdac4dcae38398b38305f6e22b5d4bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2oZ1fwKYHhfH7Fe17K3SBz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2oZ1fwKYHhfH7Fe17K3SBz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12aefbc386a798df0c30910046c9d92580cc99d43e6efc96ef79bc8a3131b5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5GpT9InjuUhhbHZkq0xmni.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5GpT9InjuUhhbHZkq0xmni.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a4ae64465a3a400e3ef0ef18e64cf998348a9521c1672d6b7386aa0e792182. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VlwNfsWX7MK4QFC5PSW6L.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4VlwNfsWX7MK4QFC5PSW6L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60980a2c20196be99a4b48c4949e21620265ebdb37668adf9418832368be42de. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2opkfF9BBsMobdeRrAlfMY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2opkfF9BBsMobdeRrAlfMY.
{"copyright_id":"0x8b338c3e5523d24a775a73f1b89be5770cdf9cbdb9b0b1b711c61e9c1e7659ae","isrc":"KRMIM2203195","name":"Dessert shop (Feat. h3hyeon)","registered_at":"2026-06-05T15:57:08Z","spotify_id":"6hMwJeEhfeVm98LyRN7WWk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b338c3e5523d24a775a73f1b89be5770cdf9cbdb9b0b1b711c61e9c1e7659ae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hMwJeEhfeVm98LyRN7WWk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hMwJeEhfeVm98LyRN7WWk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4f02d5248fe61fea811a676c012daea6b3c868479c4e60ef4359490de7b5fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2aw9EKE3uVk2UTR0sdCpXr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2aw9EKE3uVk2UTR0sdCpXr.
Black Swan (Feat. Leellamarz, DON MALIK)
{"copyright_id":"0x3b0cf142dc7a93acbcdacca26295b6a74a025c3aed013ad8af5cf5394911e81d","isrc":"KRMIM2203197","name":"Black Swan (Feat. Leellamarz, DON MALIK)","registered_at":"2026-06-05T20:57:07Z","spotify_id":"0rG31ihx1Jurb7hzc6ixc0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0cf142dc7a93acbcdacca26295b6a74a025c3aed013ad8af5cf5394911e81d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0rG31ihx1Jurb7hzc6ixc0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0rG31ihx1Jurb7hzc6ixc0.
{"copyright_id":"0xf687626add07f0040d0ab500a449bdce605c6f207f72e6249a1e4f031fc34045","isrc":"KRMIM2203198","name":"1 more min (Feat. Woodie Gochild)","registered_at":"2026-06-20T21:03:29Z","spotify_id":"53kiTTfAshduSTtNTG6nCX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf687626add07f0040d0ab500a449bdce605c6f207f72e6249a1e4f031fc34045. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/53kiTTfAshduSTtNTG6nCX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/53kiTTfAshduSTtNTG6nCX.
{"copyright_id":"0x48f27f3070a4eceb9c45bf60d42205e6e8f3c9ef2af2343b75a64068a2185110","isrc":"KRMIM2203199","name":"Would You Still Love Me (Feat. MELOH)","registered_at":"2026-06-07T18:39:04Z","spotify_id":"03CC9T66w6i25B8KPGcIxA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f27f3070a4eceb9c45bf60d42205e6e8f3c9ef2af2343b75a64068a2185110. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/03CC9T66w6i25B8KPGcIxA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/03CC9T66w6i25B8KPGcIxA.
{"copyright_id":"0xb9c49f048a2cc28cfda6439e8239fc9b543712bede9b2a7e0504b19b6167fed0","isrc":"KRMIM2203200","name":"No Selfie","registered_at":"2026-06-20T03:08:38Z","spotify_id":"0jCXg7qdfRr3UoZHV5OShf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c49f048a2cc28cfda6439e8239fc9b543712bede9b2a7e0504b19b6167fed0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0jCXg7qdfRr3UoZHV5OShf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0jCXg7qdfRr3UoZHV5OShf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a853d84de6b588fe70ea0cc51e89110c177f4657973949676267b554a338891. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MEh1QrzQ6dvJGmaWDWPOP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3MEh1QrzQ6dvJGmaWDWPOP.
{"copyright_id":"0xf57abd0ccc232655717b87202affb22f192c86416ac2c222de404f1fc462b045","isrc":"KRMIM2203201","name":"Photo Booth (Feat. JAEHA)","registered_at":"2026-06-05T05:51:07Z","spotify_id":"3kqsrtfUcQFawwGwsy7go5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57abd0ccc232655717b87202affb22f192c86416ac2c222de404f1fc462b045. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3kqsrtfUcQFawwGwsy7go5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kqsrtfUcQFawwGwsy7go5.
[THE SEASONS VolⅡ. 11] <AKMU's Long day Long night> ReːWake x Gist
Dreaming of a Freaking Fairy Tale, Pt. 3 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235af558935929cd8f676986584b9ea13e0ddc617ac45b06265735cbed925b07. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5a4CtX0vIw7zwNU4Hn4CdO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5a4CtX0vIw7zwNU4Hn4CdO.
{"copyright_id":"0x60f93613937efbaf4b31cbada95ccedf9273494afae381c580969e03bc68a2e9","isrc":"ZZA0P2404153","name":"The One (feat. Gist, oceanfromtheblue)","registered_at":"2026-06-20T22:39:47Z","spotify_id":"3dN3BoFegAdO8fROrCxqjx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f93613937efbaf4b31cbada95ccedf9273494afae381c580969e03bc68a2e9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3dN3BoFegAdO8fROrCxqjx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3dN3BoFegAdO8fROrCxqjx.
{"copyright_id":"0x38c93856fc76358d4121f463d06a105a2c0da75e7899ff214952dada188ab0e7","isrc":"KRMIM2427563","name":"Privacy (Feat. Gist, Hash Swan)","registered_at":"2026-06-17T22:17:22Z","spotify_id":"1dq0mVbwSE7Khrtp4wGWuW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c93856fc76358d4121f463d06a105a2c0da75e7899ff214952dada188ab0e7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1dq0mVbwSE7Khrtp4wGWuW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1dq0mVbwSE7Khrtp4wGWuW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c38395705c39ff895d54c48ad8f95b5f7822eab0ecb43162a5ee0462f352bde. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GOeHzr2n11XBa3zt7HUBt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6GOeHzr2n11XBa3zt7HUBt.
{"copyright_id":"0x1e3c0d0685c5adcfe661d8c340dc0b26e4ed73293c3c7a72b328c1e8b0d0356f","isrc":"KRE132400011","name":"On the top (Feat. The Quiett, Gist)","registered_at":"2026-06-07T12:18:19Z","spotify_id":"2jkvI5zv8yDQKReAlyMj2t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3c0d0685c5adcfe661d8c340dc0b26e4ed73293c3c7a72b328c1e8b0d0356f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jkvI5zv8yDQKReAlyMj2t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jkvI5zv8yDQKReAlyMj2t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1197d273bd6828df3c90f117c109c4b31a4eb57daece740178cc91df941e09c8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hrrBuGa1dHJTcM9m66Jv0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hrrBuGa1dHJTcM9m66Jv0.
{"copyright_id":"0xdf53b25774167fa1a93ddde909ba3c9d82b5090c9b3581935d65dc80eb79c2f6","isrc":"KSA002400715","name":"Ring Finger (Feat. Gist)","registered_at":"2026-06-11T23:13:09Z","spotify_id":"1r4pcu6txdUUsGvDoIZfcp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf53b25774167fa1a93ddde909ba3c9d82b5090c9b3581935d65dc80eb79c2f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1r4pcu6txdUUsGvDoIZfcp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1r4pcu6txdUUsGvDoIZfcp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf53b25774167fa1a93ddde909ba3c9d82b5090c9b3581935d65dc80eb79c2f6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/59rFPXfBvCvHYI3unX76RA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/59rFPXfBvCvHYI3unX76RA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e14eff893c81970bc1c07cb0ee48f68052cde4c10586cb532a9f16a00c24375. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0lRyIfhsqlRYULXPBL848R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0lRyIfhsqlRYULXPBL848R.
{"copyright_id":"0x9f9f6aca7fd97cc96acea6fc6b232c6a38fd8422ea6b0b17675b11521ee0fcbb","isrc":"KSA002200670","name":"간단한 노래 (Feat. GIST)","registered_at":"2026-06-10T01:44:54Z","spotify_id":"0kFH2d429vqYYtdM18Igru","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9f6aca7fd97cc96acea6fc6b232c6a38fd8422ea6b0b17675b11521ee0fcbb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kFH2d429vqYYtdM18Igru.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0kFH2d429vqYYtdM18Igru.
Boys Like Girls (Feat. Gist, Jayci yucca)
{"copyright_id":"0x5289c30ede81b7827a1e0e1b28673464169654f7d9974b6c2fbc66adaff1f419","isrc":"KRE132300068","name":"Boys Like Girls (Feat. Gist, Jayci yucca)","registered_at":"2026-06-05T04:36:05Z","spotify_id":"0zqGsExr8GxWqoaYaa78xU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5289c30ede81b7827a1e0e1b28673464169654f7d9974b6c2fbc66adaff1f419. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0zqGsExr8GxWqoaYaa78xU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0zqGsExr8GxWqoaYaa78xU.
{"copyright_id":"0xc3c035983dc0197dcb01a28f3be6c112d02b79e1ecc0f6a5929d52e9d5e4cf61","isrc":"KRE132200062","name":"Uncomfortable (Feat. Gist)","registered_at":"2026-06-06T09:44:30Z","spotify_id":"1Xhj5uFSguCAiH1bNetMrh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c035983dc0197dcb01a28f3be6c112d02b79e1ecc0f6a5929d52e9d5e4cf61. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Xhj5uFSguCAiH1bNetMrh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Xhj5uFSguCAiH1bNetMrh.