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 0xab746859d0e176dcd8f810ea8d7a25b0a89e90e51d3275afc324f4bd2bb96712. 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/f1f39eac-6b3b-4473-945f-7e55b7fde3ff.json and https://artists.proofprofile.net/proofs/artist/f1f39eac-6b3b-4473-945f-7e55b7fde3ff.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 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 0xb595df2a09bf5b1ce9dfdfe88c0c78b25e3d9b422635febcd2295e213aa161e5. 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/QZAKB2348738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9326000b65e378fc4d66936bf34567ae51ac5a6e6537d531b488f4a1526d9350. 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/QZAKB2348739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99714e58acf4831b43aaa686c32db172c8d59d752ad721b206637f34d64eb0dd. 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/QZAKB2348740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acd2a553e2ee008faa522ad95e504e0be2e111f9efdd23ef7168963bc0a6988. 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/QZAKB2348741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba667644047f0938e94a593463136c2a29b41f33317bd315cebd0674c5bb30ab. 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/QZAKB2348742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4e8008ae93731d96eeef7c27b2b7c9dbbb9e323314dae578ecd5c7106ee5c0. 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/QZAKB2348743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21212f038b5cf14fee715165ec6c6d2540e4ce5c6aa4591a2356147a3b394a41. 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/QZAKB2348745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd7aab011f1428c6069ba62a12f1bff80d64565370ef648a4924d7481ed10b6. 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/QZAKB2348746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccde73ef4871f9298ef6cf2d9303cae2000f9f92c87c8d2e5a844b5f6defb923. 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/QZS7J2460427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe0b32220bfe15025f9712efddfbcb9042d85dac9b9f913e08006d118f140d7. 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/QZSYP2419869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e901960c4d66c7a26f006fec51623631255a4930386d4c51da013d7b49b535. 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/QZS7J2487579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c6cb0ddcd6b9c9a8c953da0cdc21be07b189400115e3d098ee6afa679a8f85. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZS7J2434299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd78547644a355e77a4568c8a231a062b2e7c62d9acee2f77ae1dd12e127a55. 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/QZSYP2451569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca1266a267291f3655ca27c24b2e5dd660b9cd0488354f528999fc030484951. 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/QZSYP2401351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4490110e68c83f5c837a01d2b71f3e7d99ff6ee9c4af921c94e9997597f0f5f. 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/QZSYP2406461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637eb133c8bed5fb83f015b06d9d091cd8b3d048c45bc5bb196cbf11020d4070. 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/QZS7J2436515.
Eating the Cats (Debate Remix) Donald Trump
Eating the Cats Donald Trump - Debate Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe228536a65bac8f0a19bb4bc4a34f6f3ef9be2a797be6a9fa49f167bae2125ae. 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/QZSYP2426635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b5bf7392938a5ff9ef9c47efdbbcdd45ed22106d59a0e06bf23443c9ba18da. 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/QZSYP2418503.
Protegeme Senor Con Tu Espiritud (Dembow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f98243bec57a5980b65a32a21dd70aaf33d007e2d73628ca1304b9bb0aeeb4. 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/QZS7J2497564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9379add3061e3926d37aa28ed575e9071b58f04dc72f8c793f5713c055681a2e. 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/QZAKB2350216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59340dc77326a901430713a039abd18b12c99febf97350da3eb9cd8de5a9ad54. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZAKB2350217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a027b3f8a125c9951515043ced684a8b83955a854a07f39b95c01bd40cca84. 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/QZAKB2350218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fb1922c8057cfd5e1b907bb6d9c3caf63e47b9e80c6b41ab5099ec38a62129. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:30:42Z), 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/QZAKB2350219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef650882b98d653ed0be03b9a3b680b665176290ad3e7e0be5339ff6c9805906. 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/QZAKB2350220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003f76b0ab67c1d7ee57097a4decf958e0432a96551c1533c12f7c803e038143. 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/QM6P42413764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5da3d3032f4d02fa66270c4f33223b190e04b5089f50e50f70cc80e65dbcb19. 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/QZSYP2431498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27871d737ca92a7792904c1ac7b02997f1451b5f96b2eb6423eeb8fa93910c2. 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/QZS7J2467280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90e0e4458ad5f2f070a1aec5d2fa9d10cc9078d8df3bf2284ea373294397158. 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/GBLFP1923241.