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 0x782c95c4203380499fc291839a09b7dc93ac8ebcfcfdb7198eb0baf18d322c2a. 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/a1e6cd37-3b2f-40ed-b6da-bfc7305b046e.json and https://artists.proofprofile.net/proofs/artist/a1e6cd37-3b2f-40ed-b6da-bfc7305b046e.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 0x1ee31a101d1f53401aca2ae398ab5f336560dd6141c93180b9b9d88db3abf40c. 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/QZNN22334059.
LAST ONE LEFT FEAT. MISSY ELLIOTT & LIL GRAY (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c5d91ca3e9a7ee1aa4022dba8904cd764994f8596bcb14ad585c4662e975ef. 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/QZNN22334060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f8a003962a355e4ca341313763a4f1803091fd6d59307a895758baadbc68a2. 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/QZNN22334061.
UPSET FEAT. TOMMY RICHMAN & FELIX! (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ed483056279114ed5356b069e128a857eadce4b5732d100d4bf6549df4ef88. 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/QZNN22334062.
ON THIS SIDE FEAT. A$AP ANT & CRUDDY MURDA (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b60a0de9a263e726acd9157e42a49d6f2a1be7fc921e703142db0d2ba01d9b. 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/QZNN22334063.
DAWGED EM SKIT FEAT. TTM DAWG (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8210319dfe6a343d068ff0aea4996fdf4a42ee12db9e6bc2a4a1f6c11d0f273. 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/QZNN22334064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b2ef4c238d73bad8d8caf80b05cf1c717fb28b50e0617b380dd3495fe729d7. 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/QZNN22334065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb7e64ad617facf1dadc2fa800e54bb94b7683d3c0fe986376ae9d5a39118d3. 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/QZNN22334066.
OUTSIDE ALL NIGHT FEAT. A$AP ROCKY & N3WYRKLA (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8552fd7827d229d95528450228d7ff2628fc5ae2a0c1e888613d3169da574ee4. 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/QZNN22334067.
BIG MAD SKIT FEAT. FLEE & PRINCESS CRO (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278bfdbf062acdc8a1d36a2cac141939e32b8a45317dae0b31a7654e59c38edd. 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/QZNN22334068.
MOMENT OF YOUR LIFE FEAT. COCO JONES (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933db02344a29151ba326ea6389e0a960cb38a760373a71fbbbb5e41bdd23537. 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/QZNN22334069.
BELONG TO YOU FEAT. BABYFACE RAY (CHOPNOTSLOP REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f5dc1f1779194b78466678525347647e31b8ef57d207e6c51bd3ee11d46bda. 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/QZNN22334070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb025717f72b0311489c81c3b96a9cc7f65394ad534dd2885bc3fbc2abf260f. 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/QZNN22334071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d936ad79d7426847a2d2bc15bfc2d9030d072bfec79e1c5e78b728fa6db8a4. 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/QZNN22334072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c03b6df053d64644725fcde729391934f74a44acece03831fe3f0e2b1d047c0. 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/QZNMZ2384416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637621b69aaaefb14649ba29797b412e5bce4630adf6007853f0cc3a8339776. 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/QZNMZ2384415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731d98615be8b991ac755377dcbe3411d581cf6987cd46a75f02008661004861. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZDA52411047.