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 0xd141c33e69b79a13aa84ece37eb9f7a58e9551b91f7c0435f654bf5a9ae49734. 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/7a4f19e1-eaff-4dc9-8422-6cf91b3c68ac.json and https://artists.proofprofile.net/proofs/artist/7a4f19e1-eaff-4dc9-8422-6cf91b3c68ac.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 0x86dfcdb102fc5f79ae96190441726cd68d78f761ca38702f59178910ebf140bf. 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/BC3PG2330881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfa1fa3868a7b2be16e9e3f6c5393e04d8e662e3d469df50b55a362951500fb. 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/BC3PG2306716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fb4c49a53eec291a6c2f6bd90e6304c869d34db85b239091dea652eb27b89c. 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/BC3PG2306717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19ce1740851a1706d8965b4ee2dfe23e25fa4832d54dec9e7eeef2824be728a. 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/BC3PG2306718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe675c67f5c9296d99926c120f8a1c45b328f4ccd528bca2d4dbaca56e4d0dca9. 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/BC3PG2306719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265a8037d2c17e8608e2f6464372cd641b064ee0e2e160f15faaed21eb26f0c2. 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/BC3PG2306721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1101f0b482301584b044d7baea9b48c885871456cae2878a1f562e662472d52. 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/BC3PG2306722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5116773904d51f3c8eee63a2f088152a087c829e64eb8fb5241e9181039cf5ee. 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/BC3PG2306731.
To Comendo Puta Com a Tropa da Marketada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d07b79c7cb474d941c9ff0faaf71478374e5a2fd6579d600071ea0db99c0850. 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/BK2242400340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd042003f535fdc3091463184fdd6162e7bb1fff9a815c8cf687f47a7507387. 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/BC3PG2400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8082ea19faf56d9eb19ee55d0bb04363ba8eb61ac3cd397f4eb87ff5a36dca5d. 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/BK2242401278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0a693843978cdecdac987084c91176f4e0fbdd8a1e3e0d6b66ce92808faef. 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/BC3PG2401324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9aa18f26523d79371b92b1f6f357fddae6710eee1990738c1977ab3a158d89. 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/BC3PG2401325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341d408bb4620bb21ed77d08a6aeabf682ead08f96e7fdc0e788d33816e7c6ad. 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/BC3PG2401326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c9a9c0c8e04efc746f43861d91be38bb2eb84675603d2b4e048cc1b5a3a96d. 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/BC3PG2401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c0ebc3f33c5528972fa1eff7d309258a9ca7d64f5ef967edaa24d6e4de7bf7. 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/BC3PG2401328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96fcce061ec11aa20ef46971cbc558d105086ac51d8d4fa84688961a323d06d. 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/BC3PG2401329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad783d0b761c573b2b0083abb4051592e7d3f5d63a324da85d5264eb6807ec2. 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/BC3PG2401330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b471e85ddfc00652c816a05a84d3038921ba54cf258ffbfcefe612e970b659f. 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/BC3PG2303634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf3dccec32a18f908e7b41a4247ce55b645a942a728e9b9695fd783a7d8dabf. 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/BC3PG2303629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97c144dd74d057c5dce0fe47262e0a38b128a7ef5aad112110f4650ca5267e4. 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/BC3PG2303631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907f2e5800cb46745ff7dfbc94a61c8f0fff80443b0ae42797cad75908beef4c. 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/BC3PG2303628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51696f6384ffe69cdcda84ddf17ca866418b78642fe9ee26b036ab363fa05c8a. 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/BC3PG2303626.
Se Deu Na Marcone X Fala a Verdade Novinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b65c4f3b6ccf0508d2c9652fbe2bc3e1a8a8fd57e921f626af16291fd4ec56f. 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/BC3PG2303627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc733bbae9a4d8b042d480323667b67234d042b203a0a8a71596017022b277b7. 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/BKHYR2400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffeede09353178c7bc49efe73f85dcedad8e04d9ec84f2db477b4ddb1fdab73. 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/BK2242401462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48818782816bfef9cb0fe290d21d7b12566761831bb7bd514ebb6f0a1ac5d9e1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:06:56Z), 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/BK2242400347.
Ritminho da Marcone - Deixa o Corpo Balançar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe856fcf598b0a011f59490be6ba27f60dcf7ee093c3b08935afd3f49eae996e1. 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/QZNJW2450826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d791b5720ad11e1e514642c19aaacc520329e0b3b5c799ba2a9f207f722b00c. 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/BK2242400338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce52ba3b36260ba4e0d41a8653339ed11d40ab4f0952085789f3f071e12f0fce. 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/QZNJW2418965.
Ai Ui Que Bunda Que Você Tem (Versão Speed Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2773aa028a0f55dc93133d67192026717882062607e5bd47ec8dec8175868da3. 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/BKDKM2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7129cad96c505d8f3f7918fadb17d0ebf1f4927f7ad6334d88f32155c810f9. 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/BKDKM2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a11307253957ee70bbf3a38796c384cc3b714999897e7ba5621692cd341bf. 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/BKDKM2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8505a1709ad8527c60b1dff607acb2492d3ef5824ef0f10cd626c5e47985aec. 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/BC3PG2331077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3030b82297d38890dc0fbb3c2028008bf5af21d0102ded11d3e15cd2b302ca9. 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/BRRGE2301056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1266c01e59a3ebcc4cb772e595e279930ecedeb4e1beda70fff4a72381026f2. 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/BC3PG2330847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f25d0b92744bdfa19183e90d8658a7217a897f5fa4457ba160964b9108cb37. 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/BC3PG2403379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5c01789b36fac16ea14a86b5f06002adcec894f01b8b65bf6e1a6050a4d0de. 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/BC3PG2403269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a3a61bce14a36522c6caf44d6189c62238056dc1007425548c03505f7452ad. 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/BC3PG2403278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1150c9ece6b1b8bcd9e696c737adea3d8554930769f03d0e85dfbaa99f13153e. 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/BC3PG2402786.