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 0xe68f49eea2f4bfe6bc02bc35ee5c5a19219441a8d7eca17d3bf07828892ece1b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27df5e80-70b3-450b-9bd6-1bead8d5f9d1.json and https://artists.proofprofile.net/proofs/artist/27df5e80-70b3-450b-9bd6-1bead8d5f9d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Sound Map of the Hudson River: Lake Tear of the Clouds, Mt. Marcy - The Source, Elevation 4.332 feet
A Sound Map of the Hudson River: Feldspar Broom, Mt. Marcy - The Highest Tributary
A Sound Map of the Hudson River: Calamity Brook, Mt. Marcy - A Tributary
A Sound Map of the Hudson River: The Opalescent River - A Tributary
A Sound Map of the Hudson River: Hudson River At the Mt. Marcy Trailhead
A Sound Map of the Hudson River: Blue Ledge, The Gorge
A Sound Map of the Hudson River: The Glen
A Sound Map of the Hudson River: Confluence of Patterson Brook and The Hudson River
A Sound Map of the Hudson River: Luzerne
A Sound Map of the Hudson River: Stuyvesant (Tugboat and Train)
A Sound Map of the Hudson River: Staatsburg (The Marina at Norris Park)
A Sound Map of the Hudson River: Garrison
A Sound Map of the Hudson River: Iona Island and Marsh
A Sound Map of the Hudson River: Englewood Brook Falls, Palisades
A Sound Map of the Hudson River: Great Kills Beach, Staten Island
Thousand Year Dreaming: Breathing & Dreaming
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 0xe14f77e4f32d1d1d8c5e001fadcc8b33d431ae632f5d4a67fdab905c3aa7930d. 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/USA560667729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29d7daf8618f01620e20f5ef89d113f451b1637ef81612c4971e024b2264db5. 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/USA560667730.
Thousand Year Dreaming: Floating In Mid-Air
Thousand Year Dreaming: In Full Bloom (Part 1)
Thousand Year Dreaming: In Full Bloom (Part 2)
New Music for Electronic and Recorded Media: Women In Electronic Music - 1977
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d6933475a480d0fa4b1a4b27aed8a2af0e8680ed6df5b84c5d57b3a2be3e1a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US4QP0465302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260288c54f323cb571279812735b6efbdd193dbf89aec60914fe2e19671be0c9. 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/USA560936834.