1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xef2f8444b66a20f3719968a6de673e7c6953881ab195628c1199e6a786504ace. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf1bf360-7a39-4410-92ab-768337a05345.json and https://artists.proofprofile.net/proofs/artist/bf1bf360-7a39-4410-92ab-768337a05345.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deep Concentration - Brain Stimulation Music, Focus on Studying, Study Exam Preparation Songs
Home Study: Concentration Music for School Projects, Exam Preparation and Studying
Trumpet Bossa - Background for Work and Tea
Saxophone Bossa Soundtrack for Work and Tea
Breathtaking Bossa Nova - Vibe for Night Time Tea
Saxophone Bossa Soundtrack for Night Time Tea
Majestic Bossa Nova - Vibe for Night Time Tea
Happening Bossa Nova - Vibe for Coffee or Tea
Distinguished Bossa Nova - Vibe for Tea with Friends
Saxophone Bossa Soundtrack for Resting with Tea
Elegant Bossa Nova - Vibe for Tea with Friends
Outstanding Bossa Nova - Vibe for Resting with Tea
Scintillating Ambience for Coffee or Tea
Uplifting Bossa Nova - Vibe for Tea with Friends
Distinguished Ambiance for Tea with Friends
Fabulous Bossa Nova - Vibe for Resting with Tea
Cultivated Ambience for Tea with Friends
Spectacular Backdrops for Relaxing December
Quartet Jazz Soundtrack for Serene December
Wondrous Waltz - Vibe for Relaxing December
Dashing Ambience for Creative Winter Days
Phenomenal Ambiance for Calming and Relaxing
Quartet Jazz Soundtrack for Relaxing December
Cultivated Waltz - Vibe for Creative Winter Days
Remarkable Ambience for Quiet Inspiration
Astonishing Backdrops for Creative Winter Days
Terrific Waltz - Vibe for Calming and Relaxing
Scintillating Ambiance for Calming and Relaxing
Understated Music for Creative Winter Days
Unique Backdrops for Creative Winter Days
Beautiful Waltz - Vibe for Quiet Inspiration
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 → block OTSBitcoinBlock must exist at that height 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 0xa415f721e5dff80f529720a17476002314a4f808f8d3fb554129aca12e55d835. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEAR42550242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf68663912a915e6ca58580fdd6f2e43dd1c9eb6b6bc13a10992f99945aa98c. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DEAR42549997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9564be1636a0e1a1c4d3b0619f467bed8041c9fb9a89e1f6ef8b604784912ff4. 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/QZFML2133816.