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 0x42986ff6f8425369a72ae171d5c2c379f7130bf412d66ae99d744f64f553f8bd. 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/c693553e-d472-4388-82dc-ec67c834d4e7.json and https://artists.proofprofile.net/proofs/artist/c693553e-d472-4388-82dc-ec67c834d4e7.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 0x86d9c9a1d217b92bab699f8ec0f5807fb52ab5ad88a39043603c766b8e81f57f. 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/PTBM12100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24099121b74ed1cfdc41531d46341607f7c99c9182b0926a008e0a84edc9679a. 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/PTBM12100173.
Sábado À Tarde (feat. Tiago Bettencourt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc682c5e04c268e9b739293246530febabb984561d526cc4ddf4755660995b6. 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/PTBM12100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794de25f938f928773deb44452bbfd17749b1133830c64f0ec5d311d56595b54. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:54:10Z), 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/PTBM12100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6359e8a68a16b0ec59ff838cafdcfd65b181c8da458ce11387d8174331cd4b. 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/PTBM12100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6aa609290eff11c6f165c719f48fa3e34b599210c7ea71f63ddc78429118c3. 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/PTBM12100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59046fb1353369657457a8005f96b511570d2bdea693343bf598695c3f015d09. 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/PTBM12100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a83cf02870ec24849b4ecbf90e7f799edbdfdac9d3c842e151cf1982fd66e1. 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/PTBM12100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1313e7081fd505d40d2d01a4f4382687c9d26d0f596bfa8fb563ed749203e7cc. 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/PTBM12100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18e4da515401a38e39c3ab3711d59ab472461c566b1aa736007983c14e65b7a. 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/PTBM12100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0694dd3d84dae61ca811c1766479e9d48beb73efb55f23fb3a7d29a261f1a. 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/PTBM12100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8a600af730b8e058e00a1be125f496c7f0e1f3707bf4c8923c993cd09eaa2a. 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/PTMD10404811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4fb24a94f9a9b80799a855edf87da98444e8f6240b994ea3cdeb1a6199d53e. 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/PTMD10404820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d9c9a1d217b92bab699f8ec0f5807fb52ab5ad88a39043603c766b8e81f57f. 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/PTBM12100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6913f0e4dfca9d03c6248b76981451983a2c3fbf95c13100ba33dcb57ab968. 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/PT6IZ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc822e84163d2ba3477b667a0307413f0d3581857454be15e2efbfadaed656982. 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/PT6IZ2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0f4f4a1e9a2976d4414d9d0723b96208dbdcc82849a6e611ba85ddbe151f99. 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/PT6IZ2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d625b34799a49db10498224adbf2edaf5ade09b8cd51c75ed6ee04b9b7a53c. 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/PT6IZ2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1570e5ccce4524871d6438a247ba76bdbc7d0cccb3b6247bd8d024dc430cba. 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/PT6IZ2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001dad58aafb2ec33bcb533929c8654edf3a58ccb75a8fcf524f89803c4a3a53. 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/PT6IZ2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6b91d2586499c7767aaf9a230efa2e41aad82f6fe690b56f588e69918ab2aa. 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/PT6IZ2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fd5ebb68e7e9808f8af7ac3d83dbb63e6cbad197be49e29ff5e6458c900a62. 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/PTPK11700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27134c9b354393c87b7a35a9bb1cc681c8a9097b1977f05db098feed9df23d92. 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/PTPK11700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23149e545062923524b2c37760d081d20e43fd53fbcd1cebe939fe3b60a5f7d9. 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/PTPK11700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5160341202d808a8f1ed30aae6e739460656d59f3d44a0b4b44c768aa5f94e88. 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/PTPK11700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aafd7405682e929022bb0d45a81dd1bb4162e5a275faef524ac3167856e0f63. 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/PTPK11700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6942525b922b70076edb934a4515f5845fd4f39eaba4236306e50d59dd6351. 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/PTPK11700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41b5c1bfd2fa6294467f90ae41d624912aa1b5a97acab907eb524fe48a0a4be. 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/PTPK11700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba35dc67eca766d30902aed3af2d5a451c7061ad1f0bf2541d2b90dbf90ed95f. 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/PTPK11500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13597760e6e5a5427c61a5ba902312488ba4ed78744179a275414d8cbc970fa2. 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/PTPK11500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3d9745b4ebaaa260bda13d36266676320813d2a91db76cfcc1f54736dc9aa3. 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/PTPK11500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2c7dd086d5deddc231a0e79a18a8ac8f8383cce2cef7d931b872ddae4435f8. 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/PTPK11500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8add4e9aea7a61127e2415690208dfa06435d18c6b4b8af7aa0179c62f2ab543. 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/PTPK11500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46bad6a4d4e23cebb0a2a3ed3256d815aa61742ef09d86afce861639bc79b20. 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/PTPK11500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21fffd208d2dbf3a5191318aee04cd2f97bf7cece51ff915ecb0fa3fbfa90b0. 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/PTPK11500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb61889ac8d2a144fb3a11fbff9a23483210f38a1674949ad55e8aa4b857fd4f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/PTPK11500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd44a7153f499902bda515822d78bdbb0f3e3a46d752fe4730cbc2dc023c4f4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:37:43Z), 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/PTPK11500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55a74a02266b6166ffb08824c420da56268b146aefdf1f478c342d511965275. 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/PT6IZ2500001.
Crias Novas- Um dia vamos chegar lá_Produtora Cazali