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 0x47d3e51561f5709b47884f208e766fbe32c3db4b2795fbe483cfe287c2ff3363. 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/2a471b98-18d8-413c-8dc3-7a725aeef9cd.json and https://artists.proofprofile.net/proofs/artist/2a471b98-18d8-413c-8dc3-7a725aeef9cd.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 0xba07c7940873aaf48b52cb16a8cb1a0dd9d739dac7735b4d450eebddd6aac11e. 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/BKBSS2400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946558b952de0215361eeab8d89d0a07aa1986bd8f2693d986df39a99d464115. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BKBSS2400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5889faa97b72a8ad71523997559fb9eb4e8dfc869c6528e32510b89ce5344cc1. 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/BKBSS2400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fcc1cfaa76a12417d671a623ae1258100afbdacb450e940733bd5f6a405f01. 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/BKBSS2401246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea97ddac492940d1ac9606aea6249612ee9dc397613a4d69e002a2d4ca0048a1. 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/BKBSS2401174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5dfbd76a886f59f9b6db07266f3598b06c30783fa2a099c89e6baec8286634. 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/BKBSS2401087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b17b421c434d821e96bc59665119ecfdac429073d0ef0a29a13c5ebb388ba7. 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/BKBSS2400840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb48a8a53d2dfc1d24080e8c8843007840e3a4263a1786e53f69e05be870f29e. 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/BKBSS2400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5546875673b3381f3818d98e97a94c6811ac781feacd02bee1e0e3e0a411e7e7. 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/BKBSS2400758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734d5ce44da16d0d5a0a5bad9cfd8913701bb211e4f07093aa10c9654c0d837a. 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/BKBSS2400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7e46bd09458d12ae2efaf7774e1f5902ba6ca407401a19bfb6f0c0ef3f4064. 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/BKBSS2400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5ceaf36745cdc3ac5770631bbaeda7858b65081b3f51407f02d6a108d69f0b. 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/BKBSS2400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c18b8bd4bd85785423203c63347132f8fbabe4597538afb55be80c0eb71ed7. 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/BKBSS2400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa908e28c60df63d526c9d1b566731902165086ca1b7a252f0ea6c97b147a617b. 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/BKBSS2400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691cf18d049c044a11397d867ed15c8c139cc96f71dfc16d5794d4ed490076ae. 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/BKBSS2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cc14daca67b09e0b1b44a808c536d49c1e05618e90a52763ed5dab0d86f275. 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/BKBSS2300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6973fda291f1cd25c77537da44cbf228777482f1de6df792285db2dda8fd809. 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/BKBSS2300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521a32befcafa552cdff01cd0ecdb19cee2da9abe0029d872d024a16229d1895. 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/BKBSS2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04d20b742d43b5ea2c7b193d8dde5e8301e5b9b6bc8132d606ff50a05d125fe. 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/BKBSS2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bf6ff7a5fe7121259b138b4964b3f38b39892ad4f1e64cdd3671835e39aa1c. 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/BC3PG2200428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109192ef7491d417c032c4370d4955ed31fa2f9f299d0158879f64b3733f15f. 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/BC3PG2200394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3975f631f331f646b78bf1870d8ec7d94b5be8229dd61be5d4a6d56f10e86b4. 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/BC3PG2200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81877dcdcb11cc9a9a212c6d0eb3626a439ba67fb6ce5c3abc590693824c3110. 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/BC3PG2200370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9254f7ccbcb8ede80d3162d6f806ea46f58ed0c4c5e837d9dfdca15482f95f95. 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/BC3PG2200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9a916d63ef3a33919022fac5e2a38dff506d4e4c710fef14620345bb00baef. 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/BC3PG2200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c91108397ce244d76fc769bb81a359b4be7addcdad0da09a6f3d37cb05ba7b7. 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/BC3PG2200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f74863463d4b2efd9a36bf4cea2c05a4b73d9572693265a41deee8bae5c307b. 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/BC3PG2200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79c75eef876005d9e0bc5d726177fa14c3cb4e46855b84b80f16173d7a9e2f3. 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/QZNJW2221980.
Dj Guh Mix e Dj Dubom Apresentam: Próxima Oração
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bb4d460c74168bd02c17133621d977628524c20f22ec67d90775c09aa0d53f. 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/BXKZM2200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2f5fa800677399a20e8851dee6086682a5828650f8a3714d3e8a99c18e9f18. 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/FR96X2250463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bb816d5a7be1788d370392568df421f997924d5a00284f5156a38a38ca0cb3. 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/BCEBD2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdc6e019eaa088a286ead1e1d7d4ba419e9f9dd8c4520362afa6c89c5c90496. 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/BCEBD2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd39d2595cd20e32d7829b45aa73be1c99ac1369eab4225784859e1f4663b93. 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/BCEBD2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373776536ba594b4b2f7b92548a5cb2693844a12633fb4ab9ecc1e4952a1997e. 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/QZHZ32156011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb28d945219ec859d0d3f02172fe91cf38dd201289a18a2080c2c673c60b4684. 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/US7VG2115081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7809dc8457d297101d62f00358e054b6fc8f15471f59f84371e48277e858720. 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/QZ5AB2189776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951d65082ed7d91ae544dcd78843e6444d43d611514131efb8d426b9b3a288f. 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/BKBSS2500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf822651b82c8d4788694277acae2f44cec219183d6911c8fb2bc513e4313e569. 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/BXG6R2400148.
Baunilha (feat. MC Davi, MC IG & Mc Kadu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73074bb18fc2073d1ba518ff1a436c26dfffe3a62b2fc4fc1925cdebeb4b1a99. 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/BK4DA2463694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5670f530afe3d5cbf9c9bf5f2ff68fd92ccb5a6a44445ffad3febf4d3c054d53. 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/BC3PG2200155.