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 0x1d1f2abf48d2a908e8ed83954b1911c5331eb0e0565bc392f0920a76ca891ba0. 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/581f3e0a-4fd9-4dc4-9e53-e3f97b4b34bf.json and https://artists.proofprofile.net/proofs/artist/581f3e0a-4fd9-4dc4-9e53-e3f97b4b34bf.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 0x9c4a75d7196b56158e87e3872fbbb3af4f712dd36b37519c718ff0cfabfa10f6. 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/BCSG12200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7624d475c822b9bbdf5a79b023817b13232ad93f2358e23dda63ec889dbe2261. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/BRWOS2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ed546fc0f4b0712abc7782136d2f82f19d0a513054d7dfa50b563a326c5afc. 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/BXNXQ2100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685834e7dc1527ef7a9073a69126e9a75bab2ad4ce3244aa3cb45b0c55f11652. 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/BXNXQ2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc846f3dfcbe6ca55bd5fdaa877b6e095e047a1be8e61a3fe83ac0c2a3cf16b69. 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/BXTRE1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3770415ec3d2c77a8417276abf8d5c38cf0735b17bac8f22bf9f20125e83f781. 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/BXTRE1800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511084eef4ed9919a9c762b7c23ca99e0769dce55a26724fda9797ff46cc432. 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/BXTRE1800037.
Coisas Que a Saudade Me Ensinou (Ao Vivo)
Coisas Que a Saudade Me Ensinou - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff0b8a5754abe0d7a47230b1cead088c1e2ad344d2ee85e305eb8d7fb682001. 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/BCFMW2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba53080742c61ea901f876e9ac2c7259d980c4d44e7c46f4cb348888b5f0b75. 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/BRWOS2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7624d475c822b9bbdf5a79b023817b13232ad93f2358e23dda63ec889dbe2261. 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/BRWOS2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76005679b7b418ec87c99543b0f95cf0cd7d4cc09973c8fee1fec5d78259957. 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/BCSG12200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780d5c321ce5cb3f9e3be1a0af0fe057ff9fba1dd6ef381a50e96b8c64530756. 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/BXNXQ2100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511084eef4ed9919a9c762b7c23ca99e0769dce55a26724fda9797ff46cc432. 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/BXTRE1800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3b9181344985e1feb97363870fda0f39ebd8941a67e6c3bc72712f786ee1b3. 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/BRLQ01800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d441387d44ab4b70760fb26babba04b2de636e7e29327e8269e86cfb6b6baa. 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/BRLQ01800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24594d89b413f438cc3e35c4c4bc069cc238b808f99d9fe060e196cebd28b8c4. 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/BRLQ01800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddad2272394de875edc8f8b0fc0fd757fbc1d117d6ace7a6dfa3af3b0b60331. 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/BRLQ01800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d8830ab29a9071945a9b8767564deb4c4d7dfeacd3f1bbfe71b22a35248511. 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/BRLQ01800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75100b2d3d870a829029e67a9a9f03b10b67902e969f8c19820b0b0f9c1bc1fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRLQ01800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea994c9c96ad98b37775d5cc7c8883056b7ead6f643069b0c4bedc87dbc0976d. 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/BRLQ01800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8883138ccbe312a7032fe3dea67c3abaa11b622a8aed6e510b1a96658aaa624. 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/BRLQ01800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebd278f98c6ba2eaeffcf542ad9a8ac211ab1896934ce40f4e69e23288613ea. 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/BRLQ01800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14787a50873295f15d39a10755512cf8d8e864bbb5f246f091515206507995ca. 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/BRLQ01800042.
Lucas & Kadi - Ao Vivo em Balneário Camboriú (Ao vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3cbc5805f5bc1ee668818386eacab6b0dde12e77db1b7eafb4faae95eced97. 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/BXTRE2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3233a52cb4429da82f9691adc7c61e81c9098763bfcb6ed3f2f447f9ed299847. 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/BXTRE2300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e41eec7e20e459420eb8fb34512dce07229eb46f86af543e269fc5adaf1227. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:21:46Z), 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/BXTRE2300100.