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 0x74770add97d0bf3ad7c4fe1bf8052550c054d37f2d3715d3281c8848c17a8f5b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13fd3d17-1a9b-4d27-9f29-e8facd6708ba.json and https://artists.proofprofile.net/proofs/artist/13fd3d17-1a9b-4d27-9f29-e8facd6708ba.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 0x53ec446495a20f317518fa331034a7385df631531d06478d8900af398bb60eeb. 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/3e4FtSHBoYiKrREnAhPX1p.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/3e4FtSHBoYiKrREnAhPX1p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014e9098033441c93037038de8c32f6ec45c5df41df61f5d3174d8175b9ed445. 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/3kMynLgzSAwrDFdQGVBImy.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/3kMynLgzSAwrDFdQGVBImy.
도둑놈 도둑님 (Original Television Soundtrack) Pt. 2
Bad Thief Good Thief (Original Television Soundtrack) Pt. 2
The King In Love (Original Television Soundtrack), Pt. 5
Free Somebody (with everysing) - SM STATION
Free Somebody (with everysing) - Instrumental
그런 밤 Night Reminiscin’ (with Yang Da Il)
The Player Pt. 4 (Original Television Soundtrack)
The Player 플레이어 (Original Television Soundtrack) Pt. 4
The Player (Original Television Soundtrack) Pt. 4
It Hurts and Hurts (X-MAS Project Vol.2)
Almost Famous (Original Television Soundtrack) Pt. 6
When this night is over (feat. Danny Jung)
School OZ - Hologram Musical (Original Sound Track)
{"copyright_id":"0x38d2fb834b97fe9eb05796e98606e56d23b358559254d2a55d2dcb30b1d3190d","isrc":"KRA301500704","name":"One Day One Chance - Original Version","registered_at":"2026-06-10T03:19:18Z","spotify_id":"35c6Il6Cyk0rRZbQ7ZnBs8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d2fb834b97fe9eb05796e98606e56d23b358559254d2a55d2dcb30b1d3190d. 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/35c6Il6Cyk0rRZbQ7ZnBs8.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/35c6Il6Cyk0rRZbQ7ZnBs8.
{"copyright_id":"0x8ee00f88d6874a4399caafff77a46adda6fe30e2a5af2ac280e185f6ca23cb63","isrc":"KRA301500706","name":"One Fine Day","registered_at":"2026-06-20T04:58:40Z","spotify_id":"6b6AG9qLkGnRPBb8KwMsBU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee00f88d6874a4399caafff77a46adda6fe30e2a5af2ac280e185f6ca23cb63. 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/6b6AG9qLkGnRPBb8KwMsBU.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/6b6AG9qLkGnRPBb8KwMsBU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4863c4a7129e6c26564b9caf0bc4c5ca7445e19f28608ba27f97857b721f3d67. 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/4LU9L2DIJUtNpjqVcTchGF.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/4LU9L2DIJUtNpjqVcTchGF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3377f74ec36bf63c474a8a6671c9c19749753ac4f443050b4ceea2f76f510b35. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:43:45Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0SAGChiyNmJZAIJAhIwbBk.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/0SAGChiyNmJZAIJAhIwbBk.
{"copyright_id":"0x979daa8e842a805ffc1d80cbc5797859c0aa2a13d602a8c0e28301fef536fefb","isrc":"KRA301500713","name":"Mr. Simple / I Got A Boy","registered_at":"2026-06-20T04:59:42Z","spotify_id":"5OY7ZmYBIiYMLaRBNuPmTq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979daa8e842a805ffc1d80cbc5797859c0aa2a13d602a8c0e28301fef536fefb. 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/5OY7ZmYBIiYMLaRBNuPmTq.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/5OY7ZmYBIiYMLaRBNuPmTq.
One Day One Chance - Original Sound Track Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670e6a255190125d656d1410cd17e801e53fededa743f46c33d3f5fe1fb6a7a. 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/1JL7SLYyFFZqaaSMLYAA49.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/1JL7SLYyFFZqaaSMLYAA49.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25706f9a46ed96428f4b3951fbbb545a1f4d4131c55a1df5f0c4e92ad9c28e7. 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/6e4QJ5YWi41i2tAutKFMur.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/6e4QJ5YWi41i2tAutKFMur.
{"copyright_id":"0xaa98dc36b6c840d151756bfdc508e75ab26686c4ceec677eb7f2a39a20d1e4fb","isrc":"KRMIM2027616","name":"Melody (with LUNA)","registered_at":"2026-06-10T15:26:12Z","spotify_id":"6OZIc3goRCS2w1nAHCQavs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa98dc36b6c840d151756bfdc508e75ab26686c4ceec677eb7f2a39a20d1e4fb. 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/6OZIc3goRCS2w1nAHCQavs.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/6OZIc3goRCS2w1nAHCQavs.