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 0xf9360d5f23fccb13ec195006258b4a20873c5834a8fbbcde24edfea20ffeab77. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a9749bc-68c8-4fb1-a27c-233cd60df878.json and https://artists.proofprofile.net/proofs/artist/6a9749bc-68c8-4fb1-a27c-233cd60df878.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'm Unable to Be a Stereotype (The Bad Days Version)
Your Affection Multiplied (The Bad Days Version)
A Utopia Exists Somewhere (The Bad Days Version)
Optimism, It's Hard to Forget You (The Bad Days Version)
Meditation on the Set (The Bad Days Version)
My Purpose Includes You (The Marathon Version)
Future Bestseller (The Marathon Version)
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 0xc68b0286735d59c4d3faef2795400170bbb874827ab89dedf861b9ca2f1564d7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:37:12Z), 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/QZZ7L2506118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85d4ed0c2a97217cd43ba644e0efc001254dfbe845549650238df7757bc4624. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7P2559036.
Lots of Heartbreak in Between (The Aloof Version)
Lots of Heartbreak in Between - The Aloof Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa040ae7e5e5b3d3fc7b0d6944f613ec6d2ff832efb7b891f00f5adcc84b98148. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QT3EX2512129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86778a5813876206d95a7a88abebf941e547fd0cf876d3fc4c74139eb68275dd. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QT3F42533784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc880ac915d8e2872164a8d89b68e72d93a07f2d590ee57cd4aaea3c0a13a73f9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:04:25Z), 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/QT3F72596167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf999a3157444eee99e55ebc76a8f3040202cdd41cef3af36a0b9705e667332. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT3FB2599392.
Afraid of Irrelevance? (The Aloof Version)