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 0x1e0de8dd9fff61191dc407f3f1260a480063cccc7e31d0ee3dcd67bcef11ac92. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/630bd9f7-24f7-4f53-8587-f4b5c0479a47.json and https://artists.proofprofile.net/proofs/artist/630bd9f7-24f7-4f53-8587-f4b5c0479a47.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 0xcc972a1205f0689f7af27643c71bf2eef27fa3b9d5d7323e447b779ca65bdb9c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN51919620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25348041aba8f91d2f8629cf24fb1436ded6520e559f76d0edb9e21a965da3a2. 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/QZHN51919621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bdc0e55ce0e2fcc463c8da92fa5c05a30ad451ae3a5a4620223aa4339a7ae1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZHN51919622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0edec57fa2fee07269f072fcdfa2a10c80063bbe4caba8da804220840292b6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZHN51919623.
Opening Theme (The Song the Icecream Truck Plays When You Drop Your Icecream in Front of It)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ae68a1bebbfb0e7ece2350a949be66499b1e90a583629d216ba07cd5747209. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZHN62003772.
Hero's Theme (The Song I Hear in My Head When I Think About My Friends)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d3d4514c26eb7e3dcfb0d5ed8ae3e65e3e3b92e67d0abb2a5ff77e8a5b3828. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/QZHN62003773.
Older Brother's Theme (Fall, Then Rise Again)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe49b36654272d63f77635208738c584a2803c882c73216e3a2acf616dbf355f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN62003774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dd81515b404b4d30b31fa9e45c67f0d23f9deec1b1c206af1b70c1700a4ea5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN62003776.
The song I heard in my head when I bought my first pair of roller skates
Nail (The song I hear in my head when I think about my mom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380784dd0025d239580d5241ee2d57907a7e286b1f1b0c1c5535efb071d6a1cb. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZFZ42542869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0607e23325b443963eb13d0ba6110cd3fd3d95402f956b9fb726cab8078c1a. 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/QZFZ42542870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7670fd70775c3dab52d1ecfb4c8e4a3092aca49f033abb6b0b2233c5466e139f. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZFZ42542871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dfd7f2b255a89579a3d9d77546e057e2a7538a1030628dd5d0341b81f63145. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZFZ42542872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5069152e25490dc3215708a20cd4709e009cdef07050951e6039840e58835677. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFZ42542874.
shade of blue (feat. Rxseboy, Tia Tia & Shalfi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3570555024a3c5c431852bbd6f2f37629ab475eaea445a263e206fc0c21bac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM12210906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4413cab58ab9b0aac29a608399e31d50d37f2b39d72c2509da28c27e6d18e709. 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/QMCE71303069.