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 0x7527f29f6a5d7e25f834b038514ea3cdf347a843d74f77297e6ff58efa0d38f8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ca4a139-f577-43bb-99bb-3a90de71a6d1.json and https://artists.proofprofile.net/proofs/artist/3ca4a139-f577-43bb-99bb-3a90de71a6d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deep Focus on Meditation with Nature Sound
Ambience: Relaxing Sunset Atmosphere Vol. 1
Focus: Work Efficiently To The Sounds Of Himalayan Bowls
Serenity Unveiled: Roof Rain's Concentration Journey
Immersive Focus: Attentiveness with Brown Noise
Harmonic Mind: Chill Melodies for Deep Concentration
Mindful Rain: Nature's Rhythm with ASMR Resonance for Concentration
Mystic Mindful Moments: Finding Focus in Calm
Concentration Symphony: Peaceful Practices
Flowing Focus: Harmonious Soundscapes for Tasks
Ignite Your Focus: Binaural Firelight Concentration
Focused Overture: Ocean Clarity Interlude
River Ambiance: Calming Work Environment Music
Focused Stream: Ambient Sounds for Concentration
Binaural Focus Frequencies: Concentration Symphony
Piano Focus: Calming Melodies for Concentration
Meditation's Deep Rhythms: Calm Melodies for Focus
Focus Frequencies: Music for Productivity
Peaceful Study Music: Soothing Sounds for Focus
Hjemlige Smagsoplevelser Med Hjertevarme
Concentration Melodies: Soundtracks for Focused Minds
Skyernes Hjerte: Celestes Åbenbaringer i Horizonets Lys
Gentle Music for Effective Concentration
Binaural Beats: Sleep & Nighttime Relaxation
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 0x517b1e6a425332d3bd47bf83df161f52b83866b928b3eaa656f8b43aeb06792f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUD92505111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0126c496b3cb2532e41aaf66c21647f68e27a95f0f40c897f5f2024d6826114. 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/DEUD92505112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec85e1bf7fb6ee58d6b10f77c89cdbd2b1b381c6901f9cf88865aff713edc8d. 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/DEUD92505113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e980790347e092faded6ac99358e05a839b4b53c9d7f926cc863f757ac97745. 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/DEUD92505118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ce3d31144153b9910aac630c4095cbccfb187f39539c8fc8ca38721215a12d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUD92505119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b5b5b9ae62d76aafc9b96b07efe0e7c3e9aeaf6c3bc7da984e33d0c0f1f83f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEUD92505114.
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 0x188d4e3958e7b1baefee26125977ac5d3fa4e53ff30d3f42a8e8750185471084. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEUD92505115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3af75d4174c5c2a82787cd0ad0028cfd19378eb20326bc4f82999541816689. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEUD92505116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9a0c3bc3c3f5b3627b3ae53acc18484c082d36b4100df0f748ffa66dd354a1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEUD92505117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7111e37fa9b377a6780193bea04fe4610082c6de61d30899c21a8e7c3f1c91. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEUD92505120.