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 0x65ca4f4462300238a33a8c1d857598777c82b999db167f8e1dcaf44dfd1eab18. 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/4d224124-13f1-480e-bd89-f4416b9bb0a7.json and https://artists.proofprofile.net/proofs/artist/4d224124-13f1-480e-bd89-f4416b9bb0a7.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 0xd6205b7f5bbbe7a8c3e97f7fc67ad7271f6751684b7c957c0124728caf8ea3d3. 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/QZMZ92468371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb24f0d65a7eb77feb7875ac6acb7f54df8f5f39e40f1d9e5a4f8adc4827d93. 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/BXKN92500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450c20259b09c678684cc20fe877fc1f048f1f7dfb970e4d56817bfa38d21caa. 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/BXKN92500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa039718a6099e626431eea3aa16ef38bad3e65c16ffc218bf2b828ebf1896bef. 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/BXKN92500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb06d3660539b28c17fafcfeee7dbd7efac15f18b78e48fc88eb6b97506e550. 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/US7VG2582134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcecfcc320280aedc79d4f1bbcdcc95afe45c99c6b74e234e7cc7e58eae1122. 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/BCFCV2500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acaf5f98a9f88ee40320b360c1c0b23f7cd2ff5906a11afc461aa35e7828e4b. 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/BXKN92400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb2dbc3b837adb72847ad63a5597643018cae7fbe4c685cbfe0469095508c93. 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/BXKN92400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afb18d4e1e27e23d9a60d66698098af75e4009e1d8a50cec53dc0d93b9dcb08. 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/BXKN92400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2d5a999dc602eb9ba23becdfa70b4e63b22faa7ac86d0ccdac775eea953fbc. 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/BCFCV2401052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4116c37da59694100a811b604dac5e6b541e393e1dd065d3bebf4c403f3e7392. 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/BXKN92400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a8aec08ffebcfa380959bc6244473b4895bfa64cca3c5ae1e5a00218446f7. 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/BXKN92400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a34eeaf38396fccb4b563689f514b03ed3904a06bfcffcc412d6cce5592284. 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/BCZ582400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab23b18f640edcbd8343333aae8d3f1dc3df10475475b49ae9e7bacac94151fb. 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/BXKN92400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee21a3b557597bcd15a7549641b31a47ab953458f19c10b7057b4046d9281b1. 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/BCFCV2400584.
Montagem Bota pra Brincar Com a Anaconda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d56b8bf07efb0978b5aaaa3b5c318c840db145d1d42cce7d6bf8de3d0c0c18. 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/GXBAV2236432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d11f3a94c10287d099f850c5e5fe668a35174bbb19fedcf8901bdcdb6741b39. 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/BX4IU2412262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b79f2e373abba5d57ce3f95f28e8e1330ba44edbd8a5e781bb3f5ab7cea128e. 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/BXKN92400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a09f0ff3f15ddb66cc68483c9362955ec184e39bdad2bc003388f6c36f1262. 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/GXD7G2495714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217821bce5a37e35035a9303d59cd34c2da7a80cdded1652a99adc3494b3d7ef. 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/BXKN92400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8515b00ef2275ff963eed36c84f5f9f07c44e2354e140a32953b44635b64e0e0. 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/BXKN92400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51c6eee2ff9d1cf98ade58c4dccead56635c67746de8f7542836f71cbdb1097. 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/BXKN92400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13c63e2cd562978ac27db2f7feac7a4f5de6ef4e1e750faaffa3551b33c6685. 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/BCFCV2400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d42aa4bac1a87a6a6844596a3822c25b69e1be6578b6233c56e5ad1c420e6. 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/BXKN92400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d576f688b005e7d3cf1db7c607f836da6e5772a2e620bc3fa00d25ccc15a0a. 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/BXKN92400001.
De Dia Nóis Tá no Vale de Noite Nóis Tá no Baile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8250ee63ee03826cc6135691a4427502910fae8ccb3166936f4cebefb9a59874. 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/BXKN92300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9c0d945f7ddb6e076a9951a1031bd7f2a59cd92710c47ca792ccdb1e1d6f0f. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/BXQZ32300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3db1ced14334178425660339431be00cc1bdd94a4cdf277a820c749c14b3f8. 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/BXQZ32300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8399e09b3aaf7ccac890ae8195fcaf99fdb1af248e4157a03dad814b6bb4230. 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/BX4IU2350944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b59d92beff8de47ec642883be16c39393a8d45a8a4f887e042c7fbded95a65. 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/BX4IU2344760.