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 0xec63fd31928ecdf992abbcb2965de98fbb54a973eb365d62c90e4147c08e8133. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2b1d251-a1c2-4472-aa04-234dfaa91f7f.json and https://artists.proofprofile.net/proofs/artist/c2b1d251-a1c2-4472-aa04-234dfaa91f7f.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 0xa46bdd84419d16fe3b65851725f59f2e6e23848e304ccd0f7f09d110a7bfcfd3. 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/BRPPD2101518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dd5508d734a4591edbfba2c283bcc00887205b38c66cca5891edd76d3c18b8. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRPPD2101525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806b11d20e4f85bcbeebe4e7a04b5ed266773abb4d04962d44fa58f91af7f886. 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/QZ5AB1865652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c946ea8d5dd2d6d892da47b7e6be8c56ac1ca3fe5e4e8d8f1ba0d640877e2df. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5AB1865657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ab8a1c0f763ebcdf14b3ee229700d7b2b3308a3fc16ff49ce242b5cd0f60c1. 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/BRPPD2210007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ab4d0bc1997e5467a83314595148a952a6be7319b7d78ce7da970f2971000e. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:03:26Z), 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/BRPPD2101592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64568435f0b098537b046a7d003088c6a7dfbca5520103b683d4e83918a7826c. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:34:51Z), 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/BRPPD2101529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3db7a145d7ce2b077e6fb99d575aadb8853d0271135e3c7414070e2fac576d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRFT22300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d26495a1694b16d6622741910fdd150af75ca68e344690b4b593fe01c028ec3. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZ5AB1869015.
As Melhores do Cheiro de Menina (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5cc7355809ba5c5c49b7979658c35031ed3b2364afe51c0349c7d19a62dcaf. 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/QZ5AB1870392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc16e9959eed5ef19b1f45e413e0dd88908d9f570a4ac225eec64c22106876fd. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZ5AB1870396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5ac8055f0f21595f26ab5ce69169b9c29dea850b1344376d08daba89a29939. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:53:00Z), 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/QZ5AB1870400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d529c0eb850a9cba8ba339e7f851817ac91e56dc5673eb2308ba825ff0b8a8b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5AB1870401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092f143739a9c000f3099e0ea98c3a1282b7b95e4bbe3d9d92de7888185b1190. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5AB1870403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec07710d888843fff205b94a3bbe87bded88823f4bf1c16a19037d2fc75fe35a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:49:54Z), 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/QZ5AB1870405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7795a30c3a3c6a5788d8782227de5c5ec96b2c6434e1dbb9eefaa14c57d7ed2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:00:46Z), 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/QZ5AB1870406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2209b3fbe9d258b313dbe0c2d31243cc1a360b9f03e6c0cbfa6d8b24fb5728. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:23:49Z), 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/BRCEM0400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3155fbe342817d51da760f820ad8ed50dc2b775cf8b76f71fdc8e050662509. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRCEM0400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bf8ca552c04ae1372eebe5373ffe7077ae1315b9c47e7878e4016e986ea330. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BRCEM0400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61d990f9dcba761b9aff309374e48d601b46a7ef9dae6116bad0ce3e63269f3. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/BRDI70600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8237534fbe46b895ebef052bfa82fa3d6fc7dac832f753cda1264f8b8f1960d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRDI70600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643f059059bbee5a4a32ee08edb0f72d2208b2a57a1256fac849bbf7770d13df. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRDI70600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfad21dd70a91d6634b955db5aca1ae796cdc57238a93fd944e34776a87b7947. 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/BR90B1602212.