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 0x784df195546d5495c4c707c76e3ad70551c3bced5255f7df9dbf64476c9b214d. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5b7a49-59a8-4f9e-be29-1b293b31b9b0.json and https://artists.proofprofile.net/proofs/artist/fe5b7a49-59a8-4f9e-be29-1b293b31b9b0.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 0x20b34e2b07e3bcdbaa090c31ef6f032152fd3b9bba883cec3c3158d99f4589e9. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZNWS2191998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf508a0923deacfc97118e191b1c54bd554d6b9e4d5cfab1b5ee2856a4d2abd19. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWT2109274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44c18b7a6f3582e209ee94c9861260c940920bd599455b3b55fff4b39774d1a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZNWT2111116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371c921cc286be610a6ea675336cb1e122c3e9ed3ff7fe3854ab66714a8f3057. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNWT2111117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba6e0769d9ea5140199ad191e833769caeed5dd2ad59aabec1afbc2b95f7b6c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZNWT2110132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995b0ee345a8f93cf73e7353ae4236720d1cc4b268fdbe4d62cd410d520a0e14. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES92277376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a8b800173d2a5e329b426107c4fbe625b880d2b3fe67d32ce5c3d103f0e48b. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZHN32273462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072ffb762680caa697f08f880e79a9289ac8a24406205d238f36bc767a1828c0. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZHN32292302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8092d8bd2cb0d3d3ed8299e18902784655c5f9fb833169d9bf8656999d0f6fa. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZHN32292303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4baa4f77d28d058ac21370401f58ac20418a7289935ad18ccbbef44f3615bc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN32292305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9f248e3284a2c4b2946ffa09ef8d576ac4f8184404f756148400ff6a920332. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZHN32292306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16796fd9b7a1cc9aab235756e3864a1cc363ffc3358669c8bf52da563741cea5. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZHN32292307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e9c4176636f69b1bbeeac3d5b6cada1bc2c4f22666b2d7156a6b12f0a3e46c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN32292308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc814ccc408383a12265ffcaf4ec310ecba236edceaa66a8ebd839a3bc8e98c85. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZHN32275445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6851886a74b8f0ebe6f4ce1e48cc89b88bfd0df9e4a58ccc63f379cbf59889e5. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/GBLV62305701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4cf037eca16cb1e19ff9860f9ddfc436a77a2b97e0a3e423be124b73a510fd. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/GBLV62305703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f73a218d5c96c30b7e923971f2b22dbd70edf2b13185b6725735937d518530. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/GBLV62305704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9445c12f595c1c39c0a825e4ac7339673330311d42513f796edc901473356cf. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/GBLV62305706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0c73a5686ba6b44c4897440f0cac5f55919d7e054858d2d1906ca3952436ea. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBLV62305707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55a3dacdd0ccb38a586b6718067a92451d4e427c6a5ffec0083c4086a9d6161. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/GBLV62305709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ecb4e192618cfad0303eea8c5e3d1fc2bc3bda18a63804947f1aa405627ef3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBLV62305710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca671fda05a7597c21c65cbb3189e78f63624978d052e53f57306e54c37e2d45. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBLV62305711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f99f6926ebc17dc85c66b659d6c3c46541cabdd0fa5a246431c8947983a8a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBLV62305712.
Ember Nights: Calming Fire Sounds for Sleep
Lullaby in Rain: Music for Restful Sleep
Soothing Binaural Sleep Sounds with Nature Birds and Rain
Ember Nights: Binaural Fire for Restful Sleep
Music for Restful Sleep: Gentle Night Melodies