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 0xf586d842d44b594692888e537e45a2352fba0f9285bed01765d9463031d999f3. 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/7b9f3ee9-fe3d-4903-bcd0-82278ea3bcce.json and https://artists.proofprofile.net/proofs/artist/7b9f3ee9-fe3d-4903-bcd0-82278ea3bcce.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 0xaf6d0165db328ca93272259cba56233369124b06f17e7f453a4b2f269c9d5027. 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/BX5EU2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe0df9d541778c1fba0a8b9b6920580f5720aa573986b1f20c87d5eedbc1643. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BX4NU2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a468e45c26825b2d7dbd96c6abf894387323c0c2e913add3b0d250f98fa96b4. 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/QZK6P2405044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca464b0e60ec60e42cfc19ef4f019537c566ae1cdfcc937c68dea8f1b8aa6a9. 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/QZTAU2430749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a4252f39b8d03581e1083937bafed1f681b58ef482f1d1bc1d8ecd2f506b12. 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/QZHN42457382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922fafaf590dbd7d562eb2d1012eecd5e6d2a12c1fe2b8429e4188d4092f5ec7. 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/QZFZ32465660.
MTG YOU POWER x TOMA SOCADA DE 4 (Versão Bh)
MTG YOU POWER x TOMA SOCADA DE 4 - Versão Bh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea4285a854fc71dd5a45f3ceef27614cdf9574b92da91271fc7fdb654309403. 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/QZTAS2430198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159af9153a979f29bfd8647c1dff7fefab00d939224fb97711478db2347b72f9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BK1TB2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f0411c1379b27e39cb4ed7eec5d82a4246911ceb07da07287b6abbe984ce15. 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/QZTAY2486119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83222f965088a914bba89be5dd4942f041dec429c922d040803894d162dbb8e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTAU2434637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cca9ed83f87c93d585abe7775a865395a259fd2d4b471e80fca1dcabd123de. 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/BKNXO2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bde8ff5a267cd43d20525328225fd203f1ffedc096184b25f8d9a40958e67b. 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/QZNWX2485323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a9781b23cf2728b2ced3f680f6b7534457992da5d0aa10cd0b1019d89042f. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/BK1TB2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51953092c36af7f526d46b2be1217d0ce341f066141b65f3835f63a00c9b6e5c. 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/QZMEM2441222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4973a027e94bce71e840994e56d88664b95719b96f500c819badcaa45840b237. 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/BKJH72300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbed0cddf71eed541c1b5896ee930327d49e868bdba00298804f5bcce6dd8f9a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZZEB2396053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9ecf892de38002f99e01b1dc8f2d7cc6af5e083e29de6fabc8d57de6378c87. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZWFM2367896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7c88b78063bf78c3d8bcd2b97136e1440c8ea230ec89b827213f2cd5345152. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZWFF2397882.
Vai Flexionando X Taco La Dentro (Versão Bh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06498095869193e2b2bcf19f6a7fd4f03699844442b029cd97fe58fcf8e4a59e. 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/QZTBF2341082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfb562c809d4e6db4c9139783fe9806f548ed3612a4fa031eee3bf1c579690d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZTBB2387681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf3cfda525a49eaf78c0fd01fba2b0bf9da5b1508a545822bfc2eb2be96ce73. 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/QZTBB2391180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc125c21ccdebcd464f856f52672088160ef9769b8b8022a6691e588bd517ea. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZW9K2346390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9293403c3dfe0b791011948b9038a403443f9b221ba6aaf0e97a36243b770501. 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/QZTPX2386353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564d790707f60150c5f0a7df7f818362cdb72ce847cc9759fedba7afe5cc4214. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZWDD2353816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a59ecae813f8983a98ca159da039415e313295b5f7826dfe6f0c9daa9f5d68. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZTPX2334173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b726ed852a493e93569ff67d0e011e8e4c327edb6df0b96543fadb24bed28bb. 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/QZNJZ2307237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca69aa87e607890af9017bc7df1e5468d95417257dd8c5aba34eda69d40a181c. 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/QZTPX2302935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d5fb5c5a0f9f191363afb5adb1f944390e67826864999538cd5f341d3dfcda. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZNWY2372858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8dfdd344971b364f2272d5a93cda0e3a4825f1c10b2489544b4ad4748d2555. 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/QZNWX2331358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c0f0eea62bd1d7205738f05e2e3d33762c24b432a7851c7de2fd0960638310. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/BK1TB2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc181a49a93767d46edc4cf8ca2ef15ce2137865f112fe3dc18bd3a06af333ea7. 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/QZWV32418389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe16c9bc85a8e49505f80dab3248cd3d046ea8881f025a11486f23c812f8533. 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/QZWV32418429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055f0a8e7c7b01ddba81f49b5cb2c658c74674cb14b3e30509a8a1cfd044753d. 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/QZZEB2398693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7f1db0b1248ddb7ef480e3410db31b6ca74c426df2a5a6e75e70b4799bb9a4. 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/BX4IU2302621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae6c85666cae524b32c7d2c091ea0b65aac73f99a691f52e5c64413d88533ce. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BXIV82277538.