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 0x5a7533bfd0365257c0a7362e13c5c7694d821fb9eef3f0a24191762e9422ff62. 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/db98e226-0a38-4a0a-8ab6-06d1fe6f335f.json and https://artists.proofprofile.net/proofs/artist/db98e226-0a38-4a0a-8ab6-06d1fe6f335f.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 0x6825bbcd198d3f791d082bed12af93079c2773c9151e5e16510048745473ab97. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9K2355606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d6113b11b2ccd35a7cd851289de66939c3a2b401213a6bc2706cf28039578e. 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/QZTPX2376698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20a9d4a4feb085d140a34c4755859b9652f5dd14e14a31c5a6ff7f48e4dde35. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/BX4IU2353851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385a96dc91784aaf3747717e88792228b75af9f1e6cce5474c421782d79c964c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BC8AN2400039.
RELÍQUIAS DO DJ PL O PSICOPATA 2017 x 2019 vol 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e3fbab49a51b76c791dc4d2ef088378ff386a4118ad795b9122f027de9c4e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX4IU2339056.
RELÍQUIAS DO DJ PL O PSICOPATA 2017 x 2019 vol 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a0a305dd032241038ad5281f84af30ae4e0468f56a4fd50bd6113113a61aeb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BX4IU2339042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c10be4e33630d378a2558714f1c9bf462845799d3505b9f1918db9d29e4f3d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BX4IU2339048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacb43d54b3da6516c89a5dafdc528807c595103af67ec0f96b6dd4c49482bc7. 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/QZW9K2419621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c93c5d69af0930c059ca944ce1cebbb3c32324272ee48cbe396dd9c54d26ee. 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/BCHFD2400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4903784b89fa9919dafd0964543c3879ce453c1d7f5a3a133b035d86a918d44. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZTVM2468699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a1c2bd9095fb3e7871d4fb85ffe4fa5fced4dc8d4a974c6989999c0ecb8d77. 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/BCSON2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ca14f217d3620d06b2eea08ead51cd72fc274b63ebf753388f438e543b5a92. 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/BCSY22400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5603da02a5f282153dcadccba64828b671dcb29dc0a3740dee1bd95c9c3c42be. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJY2441797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8525261b53b341e24931aef2edbaee3dba208ff19443727cabce23e6a4fdb6. 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/QZNJX2437011.
Mtg - Será Que Ela É do Job Vs Toma Sequência
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5f9ee96f692f720f2a83ed6d6a79c5d2ce2f1a0d2f86c7f05ee9a3c287fa5d. 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/QZNJV2454844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c472154e7721b92c5b14103f09be6bbe165e88126bdcb299a381e0ba06a1a7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNJV2432022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3725dbdece336bfac8c9c3101421952643779fefdc4547e961ec31641e9c91cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS2474238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1deee1c0580ee8879660b7fc9f051a34c856cee09f83ff773577b089393812. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS2458451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be291d0f0dba3ec04b4debc5d841c368cd23eb80abe24fb7736d7b9a4717c73. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZW9M2333369.
Mtg Vuk Vuk Com Carinho Vs Vukadão Com Pressão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab7fda33675b7df492663fa6c39a205dce78508160f82bf0a01ee3cc1dbd56a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTVM2340494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b5671c4c3ce80c6f423891ac7920f58d82d3a5c445647d94fdd8958fede0a7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZNJZ2356612.
VOCÊ É MINHA PIRAHA E EU SOU TEU TUBARÃO MARTELO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799e74a767dd64b4745e85137c4a04e16abba87f06efbc30b85bd7b4bdcdbd55. 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/QZW9M2332908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1078f47af2f3cd3b5c29a7e850c74c109f9e797c0fd7c00120befa6f873ea108. 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/US7VG2564024.