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 0x3e9c7e88edd3f1788c225b0d6189110b3f5d297fcc73d2c73bc07647c53e4240. 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/4ccbb353-d2e6-45f7-aef3-0ace390b38fb.json and https://artists.proofprofile.net/proofs/artist/4ccbb353-d2e6-45f7-aef3-0ace390b38fb.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 0x9fc62e22e67537e9e69c997990b9a7a9e72dd1284ae6a76baae8aa149ed99848. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZXLZ2342652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9fecdae074c73b4836d6e7c5d26daaa2e98bc135aa9f06593949eee4be1333. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DGA0Q2390424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb661db5d1fce9f6c3174a3ad5eec01071219cf055c3b9a61a5b001fbf88cbf9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/AUGBT2434845.
MONTAGEM PROS TALIBÃ (HARDSTYLE) (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fb263ceb380de0e3566791c47449bd6138f6a1b55d106fdc0825acd0fd6577. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM7282412298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff93662e5a5db58ec4a469a2bc575c5939cffa46a0096992d9212701e2cd0f6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM7282470211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a748d6bc5c30c74e121fcce8f467051f8c233dcd60d0f728de6745b0625f3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA5KR2491208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081a726b3b991bf136d603191839da635e34cbea8a22105b2e4fef6ea5246d3b. 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/CA5KR2500827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9506643af72876b8c5c92124092348bee58c04ba62d420979ee2896d2f3656. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USANG2493210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f1b62935b0e28ac1767bec1f793d90ad8f5c321ebcb67cc414a2491a30884d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QMDA72482946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b5a3b73f0d6bcbf039fd86c3e704a307736480bf2da7251b222d4cd864acd7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USUYG1589071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb0fb30f9d0f09a151815dbbb60dc80dbb610ec3e8b65637fd464ec86609041. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US3DF2507932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42ab21df35476bb6284a7226f1935fd45c8a98c04a8bbbb83cf36fc501e8ce8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6Q2558568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec405cbe8d970fd9e37e22a72753c23a1cb1f46cd0b469d9459cf4fa85b0c62. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/US3DF2541099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5e9a7b724427146690cd9555309d0ebcb040742e9df52eb0fc41a020bd0e1e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6F2524108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f14b43c1c9fdad34b51af0c1b7ab79a3d507e30583c980fe8beda62500e15d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX202555445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6a6392c6dac62c0ad4dc3238d200f918bea84af2e9d2149828217fd55cd2af. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX282569492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6d4f74355dd8c89138325f5fabbba5e77e4829d55319ca7ea7496145ee7094. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282569493.