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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ff38492f15481d176ad11213d237969223c0b82e125826bbf26906298b132e. 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/fb291d69-d1e3-46c5-b697-12e6d40aad63.json and https://artists.proofprofile.net/proofs/artist/fb291d69-d1e3-46c5-b697-12e6d40aad63.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fd8c94ae72785eb8811591f9495c8cff86078c359bea831fa20d5ace64ecb3. 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/ESA011542603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f12e1dc2ead64e8da063de9c36f1b0458c8ed37dcdac322b600fd3f88a1ebb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ESA011542604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffe464c8feba33de4921b0e26436f6532ee82584529564a56dffe5415691f9a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA011542605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed873d418ce0b568609529be245c62078f845559d405d712bbcb6422e7724bc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:59Z), 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/ESA011542606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca4ec45cdf057d563624b642a61bb06240a7fe32d337ba14494da15e7b66c7. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:03:42Z), 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/ESA011542607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7258b31e63948bc14854ae9c922406e103182ff8e26327e4290c562dee5a51bb. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ESA011542608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf288e5e798709788804375af0614214a0a1c3d759a96c8c29d52613586229a1e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:01:15Z), 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/ESA011542609.
Peaceful Sounds for Dogs: Music for Relaxation
毛茸探险家：歌颂你的犬犬家庭伙伴
Dog Music: Chill Popular Songs With Bird Sounds of Nature For Deep Sleep, Sleeping Music For Dogs and Calm Relaxation (Piano and Nature Sounds Version)
Dogs' Harmony: Music for Quiet Relaxation