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 0x95cedfd3d08e8a2b3f17bb84d1e4b512d2c4710a9ec7a3361cf12f6e7a543afa. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d5c0ea1-29fd-40ec-8cfe-f85f83a4aec3.json and https://artists.proofprofile.net/proofs/artist/9d5c0ea1-29fd-40ec-8cfe-f85f83a4aec3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Study in the Rainforest: Binaural Academic Atmosphere
Meditation Rain: Binaural Sounds for Peaceful Contemplation
Mystic Flame Hound: Binaural Canine Cantata
Binaural Fire Elements: Natural Harmonies
Flames of Harmony: Fire's Musical Essence
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 0x29215e9870b71e77001cdf46ed0867d38de2013fc559537fad00fe0ce9c45e5b. 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/GBRKQ2478161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aea17c33c77a880c2a7dc5759589aace877697d78a82011c8d9cae2fd6ef2d. 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/GBRKQ2478168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1aaef6a48360d459938c655ea02d7bdcc37796e7de8ce8ee7c3deec331372. 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/GBRKQ2478176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51e7f5a2a2df674a449b2dabe5abfca2640f43aea33602316135a2fe058c83c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBRKQ2478183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bd64e840cf82b4edac7a16d93e44745273316dac03c6c65e778e67570f8b8d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBRKQ2478192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447f6515bd4ededb192c3dd1e516c4eb6dfa58bfd60dca6612cb3431b9e56a05. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBRKQ2478200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a60ecff716885b27a2bf82bf809e383173113ea8106f7c82be5c14ebd46e5e4. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBRKQ2478207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0aaf7cf9387ecc2167859f35caa45b6b791c4db95549aaa603514aadbad4682. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBRKQ2478217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dac68a530dc9bf05a82ef019402480bf2afac988a86d3f40bbab667e8d0b6e. 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/GBRKQ2478225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf64a8282f4f073188140122f1e5ae8fc366684f62513019466f6b90d354420. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBRKQ2478234.