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 0x3305ac3a53c7496914688c4a27302287e7801184cdb6464287a85d50236af7a0. 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/29b1f075-1fea-4aea-8a61-a165e23a53d9.json and https://artists.proofprofile.net/proofs/artist/29b1f075-1fea-4aea-8a61-a165e23a53d9.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 0x2c4b7b427be102a985418b99c341c24d7817d2a2bf33a3e7d57b661a5284eca3. 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/ESA112558570.
Set Fim de Ano (feat. DJ LIPE 011, DJ GUI DA 011 & DJ AUGUSTO ZS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf729700a15c8f25d34ba8a73eea3fa7db1a4474d93f4ccb0a5ba8397156cf91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112456934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63e1b106d2cb3a281f09980c8d09e02b590f60a515f52d9497d4267442cc164. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112446616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581e60bff50e0e1a1d32657c934f139b6148de592fff5f4190842b571e601d60. 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/ESA112444981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9e36435da2d6f9d042063e91ac4ca23bb2e72233ca548a38b7028826c30388. 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/BXTRN2500662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49853d653531a1bafe3cb6d408d78e590988e896f9efa26afd4e11794d5e8b4. 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/ESA112566311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91bda226f9f1407b9340944dba0c27882de24c122a98845f5b650cfa3645bc3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112565815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288fae5ab5d3737b355569abd6e755c73fd1d8454ed568f1c45154a4ea188b2d. 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/ESA112563304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10750965c128f2a5652d7e73c6414d3d4285d6f20b8b836dcb1d7d4753418b6d. 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/BXTRN2400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31731caa7cf223ac2e8092b3efe04482ac982e9dc8096573b79c73d3a8e9e92. 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/BXTRN2400539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94498045c8f79f8307bfabb90bd94d8b4b19c4f2080028319f3e81bd6316ef8d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112448171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cc7ec033f797e78440b94b5799faa3a79e827e47964d3fd7468c091c9c37c6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ESA112443678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585d2fd0a6351a249e77cba6bf9933921d3b5a5d2701dbbf16439ad2be20af0b. 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/ESA112446130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eca35d5a688e06f24975f1c04e6680ca59db3b836711b3485023b09e5dd2a5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA112443598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc4a58fe299faca74662af50551edfee03219e8058a2cdfe7c26090eca72c07. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ESA112444259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4c0fa10382b20f08bd4aa510ad5cc8d243f60907903e7265b482aeee484a56. 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/ESA112442816.
Bonde do Lixinho X Só Porque Eu Sou Menor
Bonde do Lixinho X Só Porque Eu Sou Menor (feat. Menor do Engenho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe098ec394e78c862f601ff484cccc87d30a80ff09ddba8b6d877de3f55435ac3. 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/ESA112441772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5930d74d1c5eda7d176d6b8d4b87eaf8f43d5940afeeb53e3d1cfd60d7f3aaf0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112440495.
Eu Sento e Me Acabo X Quero dar pro Dj (feat. DJ WESKER ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28df5102d3f7ce487f66d93e6d916824a9e1a5f0ce9c3f429a8c41e2538b886e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA112439043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb241b9d4534b7c41672956490411dd99e1cebf2469532b8789409eb45e4925. 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/ESA112319551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61aa006246d527cb6ad6c1572c5ac146da470beb1ab8b19c09a56b538625cdb7. 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/BXIV82306458.
Bonde Dos Audácia (feat. DJ LIPE 011 & DJ CHEFO ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3041484440e55644a2b8237dca37839ae7e2ee45cffe4fed5d32727b9ead91. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ESA112307615.
Beat das Trevas 3 (feat. Dj Vitinho Zn, DJ LIPE 011, DJ WESKER ZL & DJ KAUANZIN 019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf402430cf581cbf8648c198f6a14b3eecb6258ac7c3eafcd9d3e126872ae6c6c. 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/BKRWD2300001.
Set das Trevas (feat. DJ MISTÉRIO 7, DJ KAUANZIN 019 , DJ CHEFO ZL & DJ SAINT ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa825f88b42fd474f6022b40dde47f81051cf7a000f5698c5abcdb4cb6f563dc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ESA112436077.
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