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 0x1db33d754361f2600564782fa6a5fcd76a5c73b22320cd467452d4a4b39b7aaa. 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/ac0bccd2-28f9-427c-873a-5d1cb2d5087a.json and https://artists.proofprofile.net/proofs/artist/ac0bccd2-28f9-427c-873a-5d1cb2d5087a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SLEEP PARTY (feat. mindfreakkk) - Daul Remix
SLEEP PARTY (feat. mindfreakkk) - Lazywax Remix
SLEEP PARTY (feat. mindfreakkk) - Desired Remix
{"copyright_id":"0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3","isrc":"QM4TW2284061","name":"SLEEP PARTY (feat. mindfreakkk) - Desired Remix","registered_at":"2026-06-21T01:58:00Z","spotify_id":"17TOggubsneGm5BvdnodUQ","type":"track"}
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 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/17TOggubsneGm5BvdnodUQ.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/17TOggubsneGm5BvdnodUQ.
SLEEP PARTY (feat. mindfreakkk) - Dlj Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632983a1baa37b64e7102a5c41b28093b69fdc545a640c8bd648578ef55ca726. 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/11erW7pKvrR399ymf1eZwl.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/11erW7pKvrR399ymf1eZwl.
SLEEP PARTY (feat. mindfreakkk) [Daul Remix]
{"copyright_id":"0xa4149e17631c435d82d23f89b1a4cbc6cc726a82485ea498e3429adb4cb74e4d","isrc":"QMDA72225429","name":"SLEEP PARTY (feat. mindfreakkk) - Daul Remix","registered_at":"2026-06-18T18:03:30Z","spotify_id":"4pwJ8BHvS2K83ajTlqHiSX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4149e17631c435d82d23f89b1a4cbc6cc726a82485ea498e3429adb4cb74e4d. 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/4pwJ8BHvS2K83ajTlqHiSX.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/4pwJ8BHvS2K83ajTlqHiSX.
SLEEP PARTY (feat. mindfreakkk) [Lazywax Remix]
{"copyright_id":"0xd694d30ee6dbbaae1528f391a6e9ef3901e1af98c562cb584614fd5caa84a722","isrc":"QM4TX2275385","name":"SLEEP PARTY (feat. mindfreakkk) - Lazywax Remix","registered_at":"2026-06-23T08:49:36Z","spotify_id":"5r0ZxGRNNGZ4TBlZ3sFcPS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd694d30ee6dbbaae1528f391a6e9ef3901e1af98c562cb584614fd5caa84a722. 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/5r0ZxGRNNGZ4TBlZ3sFcPS.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/5r0ZxGRNNGZ4TBlZ3sFcPS.
SLEEP PARTY (feat. mindfreakkk) - DLJ Remix
SLEEP PARTY (feat. mindfreakkk) [DLJ Remix]
{"copyright_id":"0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3","isrc":"QM4TW2284061","name":"SLEEP PARTY (feat. mindfreakkk) - DLJ Remix","registered_at":"2026-06-21T01:58:00Z","spotify_id":"46X3YUwWsscsZfjIMBCTGE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46X3YUwWsscsZfjIMBCTGE.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/46X3YUwWsscsZfjIMBCTGE.
SLEEP PARTY (feat. mindfreakkk) - DLJ Instrumental
SLEEP PARTY (feat. mindfreakkk) [Desired Remix]
{"copyright_id":"0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3","isrc":"QM4TW2284061","name":"SLEEP PARTY (feat. mindfreakkk) - Desired Remix","registered_at":"2026-06-21T01:58:00Z","spotify_id":"5I746fFVXWUAp4xuBMraQ7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860132cf732b65adc25cc104e2314fc1313f4b343f122e3592841c7df409bdd3. 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/5I746fFVXWUAp4xuBMraQ7.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/5I746fFVXWUAp4xuBMraQ7.
{"copyright_id":"0x2fec05763ea74502bf800bc651bee8a81647fc90fd000956f1bcc9632a535bb0","isrc":"QM7282325219","name":"Sweet Escape feat. ひかり - Jafunk Remix","registered_at":"2026-06-07T06:17:19Z","spotify_id":"0rnE60QykoMiOgtmN0OxlN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fec05763ea74502bf800bc651bee8a81647fc90fd000956f1bcc9632a535bb0. 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/0rnE60QykoMiOgtmN0OxlN.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/0rnE60QykoMiOgtmN0OxlN.
{"copyright_id":"0xb638d9ace4753a89e4e42dc58f35d21213afb04ce7e828fc759456cb36bbf72e","isrc":"JPWP02000836","name":"Candy - DJ Mixed Version","registered_at":"2026-06-09T09:49:51Z","spotify_id":"6uoNDvjK2lSPAfbDP4pFbH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb638d9ace4753a89e4e42dc58f35d21213afb04ce7e828fc759456cb36bbf72e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6uoNDvjK2lSPAfbDP4pFbH.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/6uoNDvjK2lSPAfbDP4pFbH.
HONEY meets ISLAND CAFE - Sea of Love 8- Collaboration with SHONAN by the Sea
{"copyright_id":"0x422577335e09d4bb75dbfd9ea46ab9eeff200bdb60d096efc0ce8a5b91569003","isrc":"TCJPW2306460","name":"WINDY SUMMER - Cover","registered_at":"2026-06-09T16:41:38Z","spotify_id":"6fekvsa1wJ2vUokdemZHDd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422577335e09d4bb75dbfd9ea46ab9eeff200bdb60d096efc0ce8a5b91569003. 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/6fekvsa1wJ2vUokdemZHDd.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/6fekvsa1wJ2vUokdemZHDd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1050652f43c859f13f94c3968a010e6fb445444b23ad60924bfb6d1a98bc939a. 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/42eeVyfEZSIdoEHTLx4mmQ.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/42eeVyfEZSIdoEHTLx4mmQ.
{"copyright_id":"0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff","isrc":"QM6P42459425","name":"真夜中のジョーク (feat. Natsu Summer)","registered_at":"2026-06-07T09:36:39Z","spotify_id":"0TTEZHbb54ZAWPE5JMRya7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff. 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/0TTEZHbb54ZAWPE5JMRya7.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/0TTEZHbb54ZAWPE5JMRya7.
{"copyright_id":"0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff","isrc":"QM6P42459425","name":"真夜中のジョーク (feat. Natsu Summer)","registered_at":"2026-06-07T09:36:39Z","spotify_id":"3vfjbn4TTW4DZGKbw8r1rz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db1104d84d9d7e9711caaa82e3543500657f4e2f5b7f2ad2eeccc6126041cff. 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/3vfjbn4TTW4DZGKbw8r1rz.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/3vfjbn4TTW4DZGKbw8r1rz.
CITY FUNK -Twilight- mixed by DJ TARO of Rhythm & Groove (DJ MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6bd6baee7b3b25bd3ceab0990138e8580c6e4456f252e12811fdc04f827533. 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/6mtkUqVaMoJBMG86f0RTul.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/6mtkUqVaMoJBMG86f0RTul.