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 0x4ff56fb6b76abae15fd911a15150f6f2db8ae0d170c3dd954fad16a7b1b5eca7. 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/29953856-ca8e-4ebd-92da-c5bf3b4680d2.json and https://artists.proofprofile.net/proofs/artist/29953856-ca8e-4ebd-92da-c5bf3b4680d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Is What It Is (My Momma Gonna Beat Me Up)
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 0xa96b4f3a7f418acecf0002817443b60477a8bbf06f245c945ed2332ddbf99bab. 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/QZTB82353854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3989a11922593a6a207d287416bb8909fb79f776093ac9586b009da0246bde. 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/QZTAT2371574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f49ac2caf905f7f40ea312bdcbe196bf584c3aabb9eb443d4750bd2193f53d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWX2365652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9f0cc9151f9b912518bf128e4dae33683a3fcfb2f1578f35f49893d3ac2ee9. 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/QZNWX2387059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2613ff86666d72ac64728900f5fd852a837287bb1105658d26d34625177714. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWX2366180.
When Broke Asian Parents Make a Rap Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41912e33f08c5f8db78d158045c44fc0a8e7b160f918a42087fb75af221e259e. 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/QZHNB2394884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be6063832db07fdf010f76e67f24927bb353cabd85033d4dfff52e4cfd0e53e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHNB2364765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c997de51b78fcb6c6214ee18c400a1ccb0be4c4ab46755a39b9994d623bc92a. 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/QZHNB2314461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9730d4b2e464c267daa1cc77a365bafad8e87a2186b628c757b91f3a464fe0e8. 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/QZHNA2386552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113835fd197fff62a48707ffed1e592a9424ea6e17afe964512c0e506f1288a3. 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/QZHNA2364403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85149df27729e56774ab533b80155fae36235a117e36e7f73b757c95fab4f2c8. 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/QZHNA2336569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0defe0bb0accef09d09b6a90b52076ecb55702127ca26075586ef0fc29bbfc. 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/QZHN92370092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde2b5217d3c0ca23011cedbee97c284da22dc950c762bca4f9d9dc0d345a1d. 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/QZDA42325930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e0f90fff28ca6f869d77ae0a64cde479ee7abc2303ae8d3cba960dfc1425dd. 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/QZFZ62369370.
When the Rapper From Alabama Comes To the Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147db4c5bed3ed2192d783410568f76c9b8464dfdd04cbf6b543355a7f14c0d5. 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/QZFZ62368714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae27b74461734988ed52f573c5703184ae44d3ca662a6bb0fb4d4bff9b9f535d. 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/QZFYZ2335522.
If Asians Made a Rap Song About Their Parents
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe628bd69e6003cbc37beca0251f16e7df6ff8f7abd956fd776304f9d49bd8. 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/QZFYY2337685.
When the Rappers Voice Doesn't Match Their Face
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4658c25104c6fb8e26f8103dee5f5432888d1f5e279bb3c1de9829826297c539. 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/QZFYY2319299.
If Asian Parents Made a Rap Song Drill (Remix)
If Asian Parents Made a Rap Song Drill - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b787d8035f4defa081e10e9e0dd94492bb23ee091b924b33ad0d1ed379f505. 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/GBMA22330492.