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 0x41eef0cda58dccdaac8abe948afed877496656d84612c314a8c64d61e2f7bf9e. 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/577106b9-ceb5-4bb0-9451-e409e1f74ddc.json and https://artists.proofprofile.net/proofs/artist/577106b9-ceb5-4bb0-9451-e409e1f74ddc.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 0x1c1159e78942c74ca8f62c2257492a9730ea1324fc8351fca36444f00f8173fe. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZWDE2465363.
Thunder's Rhythmic Roar: Powerful Sound Waves
Binaural Rain Meditation: Birds and Nature’s Harmony - 78 72 Hz
Gentle Binaural Rain: Cats’ Thunder Calm
Thunder's Calm: Meditation Music Journey
Relaxation Under Thunder: Soothing Rhythms
Thunder Playtime: Music for Baby Adventure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd636a1aca13aca82d16786e3d67378e726959db74559b613cfb9c669a56d6275. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLZJ2461391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b502cd97732a951bfbfbb56d066a7eff33916d220aefb8375070d605c0aa81c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USLZJ2461412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb077685b9f8f582d07f98f187bb5494719fbb499854e74a24b10f6f8013813ed. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USLZJ2461419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203507691b3a192c30543c20edf14c8ee6fc648979815b79cb348618fd98dc0. 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/USLZJ2461426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d620cf0fd5283fd9d72f5d4365f588b0d68514ab0031424f8f73508c995567. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USLZJ2461440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714121deda9b13185a9ec734f73688be83b227f25a727c151e6a059ffec4bdc0. 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/SE5W32201584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c6580d3deb430a3325bc5bf00a3b19d1ae77e382ff0cdc632aacb472310b2. 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/SE5W32201585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e220c1bb06aaee9d0d2a537247e9c35db40eb2c6576ebf7ed420f73c563fb. 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/SE5W32201586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc518e57bcf3bfb231c261688966aaef823c58ab748d9256b3d2139b4e8bb49db. 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/SE5W32201587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eae3e73f0dad0e835bfd9a89c899910569ffdd6bfeb6ca4bae71ea7959fa8b5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c84b3b0028cd3a47a3a4bcb816da1b8dc0052a138cc861ca200d08089721fd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c233145ed059e38a5810aa1b7d75b6809498cf17f66d5a047625e670a8e38b3. 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/SE5W32200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00248a4461df00b63456c305fb06fd71f5d406a2020834a1f3a2a1b1f685907b. 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/SE5W32200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca6c1dc4d63fee2d2d4aee5225ca221a63835a7f40dc28f5581ccce8cd7121c. 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/SE5W32102607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b0ff71bf6fff39f5eefe42c4df5b10c6ce9ad35ddaf4dbb00b3b3a7ff7d9ec. 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/SE5W32102608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8f5824eec0d40dae4a983f0e5d7fa15c717d6b35ee8bf6b973416a4f08e054. 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/SE5W32102609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1359121c71bf40577513e4dddafa514c60e6b9a6f648ac82410fcbe9a9a15a. 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/SE5W32102610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851445684d5f1bea63621202f320f3b126458bc8867344a72406dc49a2850378. 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/SE5W32102144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d14013953bd18b709dadcc0bb8eaed47ccb307fe5e1b41eaf5d49e0f8ef3ce. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5W32102145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f445868ae83217232ee7869c36b5628aaf44ccfdb810eb26c8ea32fd5ce062. 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/SE5W32102146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1d50afda1140fc02cb15bf1954bb38cc6064abc33a314523b3779375e5fe48. 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/SE5W32102147.