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 0x05bef4bad5fc14b463c65a91b54c2cb6877e01b5f419aebe3b38603d4bed3f4a. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c699c384-f85d-4b01-8549-dffc93801d9f.json and https://artists.proofprofile.net/proofs/artist/c699c384-f85d-4b01-8549-dffc93801d9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Ocean Waves , Sleep, Relax, Meditate
Ocean Waves for Meditating, Relaxing and Sleeping
Birds, Wild Song Birds in Nature, Sounds Like They're Realy There 1 Hour
Bird Songs, Peaceful Background Nature Sounds
Birds, For Relaxation, Meditation and Sleeping White Noise
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 0xf4d3bc9ae3bfa98f8e29312bafed14d35e36ae15f7094d528ed798ea5d061a2f. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QMDA61334008.
A Water Fountain with Wind Chimes Birds and Frogs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07542d38351b86f6e903c0a18663dc8ee1a73a0e208d189e4cf0bb2acb2f05ba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMDA61334009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdda42b62814b42fe5caa8475e7b3b677da37f5a1e9e171401fa444e67f6fdd. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMDA61334014.
Meditate with Nature, An Outdoor Water Fountain 2 Hours Long
Fountains for Relaxing, Sounds Real 1 Hour Long
Water Fountain with Birds, Wind Chimes and Frogs 1 Hour Long
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a408000b0494f0039fd2b74189514097ca664b57b0b519760a259d4524c50. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5FN2005918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd449b091d3c70786a9e5935847922f1a1f6ccd1acb9aee27cb766453d33bd4c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZ5FN2005919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee9146299212be0610b64e4147c3ef7915a42155596f7a06e404fe366b66072. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ5FN2005920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58ebd9d4813b2cba04d2d37635de040f28d29722c45549b0499a26c04d20c70. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/QZ5FN2005921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbce87d28a0ad1bd980524c6c14dc21b5edc857a8b92275fcf17dc46af8c05f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZ5FN2005922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57802eba69f719d8ab2ada0c739052027fc7033ba77ae1ee3a1cede09ff6f9f1. 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/QZ5FN2005923.
Calm Nature and a Peaceful Mind is a Forest Bath
Forest Healing Birds and Water All Endless Loops
Rain With Thunder Nature Noise Endless Loops
Rain Nature Sounds With Frogs and Crickets (Endless Loops)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185956f56a2050af0830ee5b868831f0069feb23ce237ca416967d9db2b070f5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZTV32318221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3094f82fd8df0b22436bc4a1961194b61c644898640a66b89a04eaf97236122d. 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/QZTV32318240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ea0cd600bf681f3fe0d567681e19a19f3414d47d3753b9907457f4c2b2214e. 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/QZTV32318254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d647685905e68496b833ddd0b5f86739cc97c57d6024e3ece3bad9dc456e086. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZTV32318259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0890d725c1ab6c7297d72c49a0d38d550d2578921bef05d179c6df222c032a. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/GBRKQ2277442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0145451cb249e14340b59265f0fbb8af9af212281e6e41a9ae8ccec95888523. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5FN2000877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe567a3790bffad390fa5fc6ec24d4f921fbdcb9400bd5e8dcbca67c06e46c8d1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ1912710.