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 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 0x4ce7016a1cd7e19295ffe152b99f74654904f1d165ba5d0df768de9ebf367287. 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/3833624b-be60-46df-886c-790affe268c1.json and https://artists.proofprofile.net/proofs/artist/3833624b-be60-46df-886c-790affe268c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Twisted (Original StarKid Cast Recording)
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 0x97bb29374dad5fd0b00e9f5530d2d7481f896a229bbb6fcc19a6966a8654a344. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCABS1301620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f00946aa8094e3fd2508738376bfaeefcbd04a2fe8abfc62f21b4a49204822a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACT1688782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc056707096e48450476a4afb07591a573e3c30195c5387ec19373dbeb165b8c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACT1688785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dde829275a47555aaf1118f2d4a224b89930211e9b43a384bca15b8bf560f74. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACT1688789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951c5e9b3b3f2dbf361fce2159e55ac023c1962333df35ec069b99316e893ddd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEO1918349.
The Coolest Girl (feat. Meredith Stepien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890a6164998543752c4dd702af211e477d0cbf03c42ac63bb2d0139fa3ef8dc1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCABE1260956.
The Way I Do (feat. Dylan Saunders, Meredith Stepien, Jaime Lyn Beatty & Joey Richter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec835e2efe29423d41d89d386fcf27e146e0f5c3b2d1f02b385c6b52ffd9682. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCABE1260964.
Boy Toy (feat. Lauren Lopez & Meredith Stepien)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2591bbbcafcdbf5ba7d3a06cfe73a24db103ef469c5ad7ac3fe9afe25a20193. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCABE1260965.
No Way (feat. Meredith Stepien, Jaime Lyn Beatty & Lauren Lopez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697905803135ce78266e39f8d55451afd01faf1cd68bead0a976de4f89de10f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABE1260967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea15ef0220d10df0684f813ca2fed77e16a884ed919896a55df90638cf585cf1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCABJ1229546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf698f492da17430172cba141bd10db1f02538e466847cd69958829b574f51ad5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCABJ1229564.
Original StarKid Cast of A VHS Christmas Carol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e6725fb532a8a190da4e8bcb318c93bf1be39689a524fda37a10eaf67a0696. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAFH2014716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69677944b6fca26a90756dfde04ab77f2f36cb078ceb1aae4b907f78e0e3e2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAFH2014847.