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 0x600d519c353ec6e8d12fbfa2489d1adc11ce2e4e967885a18d8507ef5f407da3. 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/f378c842-5c8f-4359-be1d-5c9626f90b69.json and https://artists.proofprofile.net/proofs/artist/f378c842-5c8f-4359-be1d-5c9626f90b69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x1cec8c4eb3fc228aaf73df746237f2d100faada933f21d6590ae1116780ce5fe","isrc":"QZAKB2401815","name":"Restoration of Calm","registered_at":"2026-06-01T10:41:07Z","spotify_id":"1zsJmwRk3rHI3CYHIYEKFD","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 0x1cec8c4eb3fc228aaf73df746237f2d100faada933f21d6590ae1116780ce5fe. 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/1zsJmwRk3rHI3CYHIYEKFD.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/1zsJmwRk3rHI3CYHIYEKFD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a72304ea65bba337730567689be15d78a2ef7a2e795df43c7230c00aca3506. 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/6TMshwD09T82DPdW3RFATC.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/6TMshwD09T82DPdW3RFATC.
{"copyright_id":"0x57aa7dd77f5bdc204e44493da183edd85bf19a06835ef66eb7dc3fe5cb4ab444","isrc":"QZAKB2369270","name":"Pink Noise Ocean","registered_at":"2026-06-07T18:36:22Z","spotify_id":"1vbDqsYjceoQrCp6hxHkFd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aa7dd77f5bdc204e44493da183edd85bf19a06835ef66eb7dc3fe5cb4ab444. 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/1vbDqsYjceoQrCp6hxHkFd.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/1vbDqsYjceoQrCp6hxHkFd.
{"copyright_id":"0xb72482ec6d1c9a8a535c5cb620e727a122e6bae9cbf8bda59e2c8dec431b4265","isrc":"QZAKB2367000","name":"Brown Noise Zen Zone","registered_at":"2026-06-01T21:10:03Z","spotify_id":"7KTxYjX3E5pOyRv3DM6Ija","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72482ec6d1c9a8a535c5cb620e727a122e6bae9cbf8bda59e2c8dec431b4265. 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/7KTxYjX3E5pOyRv3DM6Ija.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/7KTxYjX3E5pOyRv3DM6Ija.
{"copyright_id":"0x1bf62fe6e77028edfd6ce3ccf9a8505cc9e7999999cb0a4e61e60146659a2096","isrc":"QZAKB2352221","name":"Blue Noise Architecture","registered_at":"2026-06-10T15:27:28Z","spotify_id":"7u3GWc7xnXci5PV5PLyihN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf62fe6e77028edfd6ce3ccf9a8505cc9e7999999cb0a4e61e60146659a2096. 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/7u3GWc7xnXci5PV5PLyihN.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/7u3GWc7xnXci5PV5PLyihN.
{"copyright_id":"0xc72c3361ec2ba8f6e9f8fe5fbadbe36672145ab913a9d486ca1957a361fe7811","isrc":"QZAKB2167723","name":"Brown Noise Baby Crib","registered_at":"2026-06-01T21:27:17Z","spotify_id":"0U6KGlGtsX76wAUrLAklvO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72c3361ec2ba8f6e9f8fe5fbadbe36672145ab913a9d486ca1957a361fe7811. 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/0U6KGlGtsX76wAUrLAklvO.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/0U6KGlGtsX76wAUrLAklvO.
{"copyright_id":"0xa3c1bf9813973ca56bf6f103bd117546aca50f2e318b3a6a29c2ebdcf45f5823","isrc":"QZAKB2153783","name":"Brown Noise for the Sleep Deprived","registered_at":"2026-06-01T12:08:44Z","spotify_id":"43qwdaLc45ICgUQDkrHtRU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c1bf9813973ca56bf6f103bd117546aca50f2e318b3a6a29c2ebdcf45f5823. 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/43qwdaLc45ICgUQDkrHtRU.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/43qwdaLc45ICgUQDkrHtRU.
{"copyright_id":"0x4913733ace2cd7cc410abfda34f6d69215406d65930bcda4c53216c350b51dd2","isrc":"QZAKB2153784","name":"Brown Noise Gravity Blanket","registered_at":"2026-06-07T06:23:15Z","spotify_id":"07shGUO44Km2hzfqvmyr6i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4913733ace2cd7cc410abfda34f6d69215406d65930bcda4c53216c350b51dd2. 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/07shGUO44Km2hzfqvmyr6i.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/07shGUO44Km2hzfqvmyr6i.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c547aca0bc812c1cc4dbff6a4a9e9038f13fe90910a9882251e81c19fa9b2a. 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/0vdgbrDBcd7K2RYe7e2biu.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/0vdgbrDBcd7K2RYe7e2biu.
{"copyright_id":"0x509a1ab449a1ad8c6d53b6cd2487ebaa95d9a06ca31bfbedeb727deb5df2aaed","isrc":"QZAKB2005065","name":"Sweet Dreams","registered_at":"2026-06-17T20:51:56Z","spotify_id":"4JZhICDihhjyF2xu8jal3e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509a1ab449a1ad8c6d53b6cd2487ebaa95d9a06ca31bfbedeb727deb5df2aaed. 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/4JZhICDihhjyF2xu8jal3e.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/4JZhICDihhjyF2xu8jal3e.
{"copyright_id":"0x952ce6ec2224e619b41defef52b7863e8557ac3ccb8c81f7d46d30dbd4068386","isrc":"QZAKB2005067","name":"Sierra Nevada","registered_at":"2026-06-09T04:40:22Z","spotify_id":"4ADB3YdIAdUqIprD1fE5s4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952ce6ec2224e619b41defef52b7863e8557ac3ccb8c81f7d46d30dbd4068386. 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/4ADB3YdIAdUqIprD1fE5s4.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/4ADB3YdIAdUqIprD1fE5s4.
Green Noise for Sleep - Loopable, No Fade
Green Noise (500 Hz) - Loopable, No Fade
Full Stereo Green Noise - Loopable, No Fade
Deep Warm Green Noise - Loopable, No Fade
Green Noise Sweeping Panorama - Loopable, No Fade
Deep Soft Green Noise Therapy - Loopable, No Fade
{"copyright_id":"0x58eac8ea8556628b20b491de6262c54378996518e43a70d7ca4378e4f4814bf9","isrc":"DEUD92309689","name":"Deep Soft Green Noise Therapy - Loopable, No Fade","registered_at":"2026-06-19T08:23:28Z","spotify_id":"5XJp4Dk0BkngtU1JcbbZLw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58eac8ea8556628b20b491de6262c54378996518e43a70d7ca4378e4f4814bf9. 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/5XJp4Dk0BkngtU1JcbbZLw.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/5XJp4Dk0BkngtU1JcbbZLw.
Calming Green Noise For Sleep - Loopable, No Fade
Soothing Green Noise - Loopable, No Fade
Monaural Green Noise Meditation - Loopable, No Fade
Warm Stereo Green Noise - Loopable, No Fade
Brown Noise for Sleeping - Loopable, No Fade
Filtered Brown Noise - Loopable, No Fade
Relaxing Brown Noise - Loopable, No Fade
{"copyright_id":"0x3bc4b52e9ad9e83ec1e2938ae77dda301719689d2aff8278def6cfaa8ed73c50","isrc":"DEUD92302993","name":"Soft Brown Noise - Loopable, No Fade","registered_at":"2026-06-09T05:54:16Z","spotify_id":"3mQ8zOWpltO9RZmodShe9a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc4b52e9ad9e83ec1e2938ae77dda301719689d2aff8278def6cfaa8ed73c50. 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/3mQ8zOWpltO9RZmodShe9a.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/3mQ8zOWpltO9RZmodShe9a.
Brown Noise Relaxation - Loopable, No Fade
Deep Space Brown Noise - Loopable, No Fade
First Class Brown Noise - Loopable, No Fade
Soothing Brown Noise - Loopable, No Fade
Pure Baby White Noise - Loopable, No Fade
Soft Noise for Babies - Loopable, No Fade
White Noise Water Bubbles - Loopable, No Fade
Fireplace & White Noise - Loopable, No Fade
Polar Winds White Noise - Loopable, No Fade
White Noise & Desert Winds - Loopable, No Fade
White Noise & Vacuum Cleaner - Loopable, No Fade
Clean Baby Sleep White Noise - Loopable, No Fade
Delicate - Sweet White Noise 400Hz - Loopable, No Fade
Shhh Baby Shusher Sleep - Soft Female Voice - Loopable, No Fade
Deep Pink Noise for Sleeping - Stereo - Loopable, No Fade
Shhh Baby Sleep With Reverb - Loopable, No Fade
Airplane Cabin Azure Sky Soft - Loopable, No Fade
Shhh Baby Shuster Sleep with Green Noise - Loopable, No Fade
Green Noise with Underwater Bubbles - Loopable, No Fade
Baby Shushing Sound Shhh with Underwater Bubbles - Loopable, No Fade
Underwater Bubbles Baby Sleep - Loopable, No Fade
Deep Sleep White Noise 500Hz - Loopable, No Fade
Baby Sleep Deep Brown Noise - Loopable, No Fade
White Noise with Shhh Baby Sleep - Loopable, No Fade
Deep Pink Noise for Sleeping - Loopable, No Fade
A Gentle Thunderstorm - Loopable, No Fade
An Angry Thunderstorm - Loopable, No Fade
Heavier Rain Fall with Thunder - Loopable, No Fade
Hiding Under the Tree in the Rain - Loopable, No Fade
Listening to a Full Rain from the Pavilion - Loopable, No Fade
Rain Drops Dancing on a Plastic Roof - Loopable, No Fade
Rain Drops Dancing on a Tarp - Loopable, No Fade
Rain Drops Dancing on a Tin Roof - Loopable, No Fade
Rain Drops Dancing on the Car Hood - Loopable, No Fade
Dry Summer Thunderstorm - Loopable, No Fade
The Busy Parking Lot Listening to the Cars - Loopable, No Fade
The Clouds Open Wide - Loopable, No Fade
The Early Morning Rain - Loopable, No Fade
The Light Rain in the Forest - Loopable, No Fade
The Wide Open Storm in the Forest - Loopable, No Fade