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 0xc78a332d5a319c5747e89007b982407cec082570cab5bfe6de3cf414398f3fd0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fc1a9ed-b394-4451-a8d9-8a53e24544f0.json and https://artists.proofprofile.net/proofs/artist/9fc1a9ed-b394-4451-a8d9-8a53e24544f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x36f7a0d6f15307b0643ba8cd418f8c4be26b6206c5283612cc64bfca75d8000b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACC1439989.
Things Got Silly (Eating Chili at a Gay Bar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c51e3aea41d0a30a4d0d6c57a19a47125f00805ee63922bd71f4e89e395ae50. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCADX1812494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823af07bbf6362866cedabd35e6f064712ee8dc7538e7f72e3eb2cf809d96eb1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADX1812513.
It's a Stupid Idea (To Put on a Broadway Show)
Giant Bird In A Man Suit (feat. Dashaun Wesley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09a4bf2a73997e0fe5fbb425d5f2cb2666bed72f8b550db114fce06debdbd10. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMQYB2326301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168f997f3a4bc4920804f50406f28d318264d8e5bd7fa54b41dad2e4e2d5e828. 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/QMQYB2326316.
The Wizard of Friendship (Original Cast Recording)
When a Man Takes a Bath (Original Audio)
This Sugar's Eight Dollars We're Slinging
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fafb7efa1604dc156bfeed51e237e1b9152c5b225c76fd575e02eda6565167d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA42532842.