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 0x8708aab2040fa1d92f3c5c9da4f4d80b344f2dd560f75b0c2367cb437f6f1c32. 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/8d557f6d-06e1-41fe-ad07-48d504ff9ccd.json and https://artists.proofprofile.net/proofs/artist/8d557f6d-06e1-41fe-ad07-48d504ff9ccd.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 0xd99924e681cb2c4e398ddc680c2585505a5c21a9fdad6a5939af0741dd2ef2fa. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZHZ52076024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084db3e2bdb31cf9065696434a902b38d023c394b3256a071f2f765f78c22e50. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GX8KD2337899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e06e6114a6ff0ca72fefdb0dff3f9a9df400db43a01b967bd2e417ae2e333d4. 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/USHM82384585.
Consistência Que Mata (Dj Lenispy & Aizzy Beatz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9592b44dc342f5f2b47876849da58b22695d5da9310480c01287f2b89b891c. 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/QZW9K2312470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bba363e89cd7be83b993a387e1053951ab3eac3619dd6100214408998141d0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USX9P2301199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98771a4a8c4dbfb79dc9b7792c4654d7723fa0fe6ee80c62377a0fa2a8c7c8ac. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/GXBDT2315860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74da905db7f01a401224ca5a7e63390f910f05a2c15a3eedaa5e1759544bbd6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX8KD2495172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f281e7a93ec2b738bb36bb0a9358616c0443a709200513249f262661fa7595. Chain 2 (Bitcoin): anchored in block 957848 (2026-07-13T10:31:25Z), 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/QZZ8A2408104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574852b8241ce51cb202e6a5e64f3fd5510fe062c9b848d3d55a03609afc840e. 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/QZZ8B2471319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8daeecf9f8c2840e54bc87aa53414fadc7293df1d8992ccc1ec2c3ddb15c8aa. 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/QZZEC2423980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945e741529d02bb026491c5b754c16b444c5ad9ea1a7956255ab4eaa429a2610. 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/QZZ8B2471337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543be393f794af4527947e5fef4c46782d7eb3490a4cd6bebc6dcbd101122b2d. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZZEB2420731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8790d012d44a042ad8613336637df5f61241c14258d675e01b0d3c509f2805c1. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/USLZJ2585839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eb3d281ba6256a92553124b41db895afcea2db3914b3df7fbf5853d4ad5d68. 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/USLZJ2585909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5470edf100708ba228e3ffff80a20703402077fe1d9cf5450c728c48a1c11439. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USLZJ2593905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a3283dca87f0f424fa5608862bdf5ac3e35b96648db3030db58f7f5a49cbce. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZZ8B2519353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc78096dc5d5df793bad32d3696729abe0c416f2ef6698fcf526e7b50a05a76c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ8B2529182.