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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dfda85f609281f81010dcfc8b216cdfbeb7a2d3c5bf09c491bc58964e8030c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d533e858-4b4f-4061-9919-a0378568cff9.json and https://artists.proofprofile.net/proofs/artist/d533e858-4b4f-4061-9919-a0378568cff9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fee040e686b0dbe69cc38dcff8ee744e1787160b230d67198a4d3cd333992a. 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/BRGRV0300855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c56efe7e49b422b2980907b27d212ac613a1088dcd3d24ee90a265c47a6a7e1. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:28:42Z), 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/BRGRV0102710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83a3a53225f63aba053d712bf90b3764082caa58befb6d63b97803e6628bfab. 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/BRGRV0102712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ae4563c5d23d431558f52b2b41fd9e9b84a596050c3fe247825c0483b6baf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRGRV0102713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0566428ad8719f4992665342aa1f9fa2173f6f32ad8dd9837b6968de1e4c6b. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/BRGRV0102722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b23e71fb8376a48d6ed69bb7b3915ba28763bad4b361648464e860d8a586b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:32:35Z), 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/BRGRV0102723.
AO VIVO NO CANTOS E CONTOS DEZEMBRO 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede18d0f372b2254c7b0d9cb3498a2deaa3f95d5ce254f7b2b78b8e429e39bc6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USANG2019935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed61fe0e9c1ff1682cda503acd00d4052d2911df93d3f7936b4867bacded612. 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/USANG2019944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513696c059fd5f59cef6a0d4c06ab6ad9eaa13fe3363268c7200944261b62c23. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USANG2019962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecdcc8801ffdd0b256dfe142fc2c4db95491728f3b92f4c7f3b885ac1b7ce0f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USANG2019963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f1783213dfc6827dd2165648a9a8966760094c59d86906b0503d6d18f908d0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USANG2019968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92d7cb1e2671ee91c30a30912e6ccddf32fcdb0199e9ef08d7fbbc8601fbd6c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USANG2019972.