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 0xaf28936278ccb1e6d52b24bbbb570fd3d0406ec3aad4dddb8405414ee740a6d2. 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/dc96c9bc-5775-442d-a81c-8378b06b5285.json and https://artists.proofprofile.net/proofs/artist/dc96c9bc-5775-442d-a81c-8378b06b5285.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Olha Que Bem Me Faz - Reis do Nada, Pt. Cacife Clandestino
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 0x62848eaddc1f59a74478c0fd1a8976ab48a4fc46d5505eaecedaa54ab32bb694. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/BRUAH1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc890a784cf7856a658fb0318f8f430ce706360278adc67704fc6b35c82914b1a. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZ5AB1806861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4f5080cb3b6a974e7c19dda1fc7e810f98e2a08292202d2966acda5db218d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZ5AB1916893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b6bf6f843c10f0be60bb4b47233abd6955e99b0dc2677cc1845a380a6ba049. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5AB1916894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27f00ff4e5170c8b7646c1d74cdc2f1a1472fabb550f2322642dbf7c12b0dfd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZGLM1919600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc2cee31079a305d34c13a52bd512e0ecfb8efa366e2efc2efde7851ce1e9ec. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZGLM1963013.
Eu Nunca Disse Que Eu Era Um Anjo - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab6a15c7b7899df5e42fa144311639a4432694cfae38b38d6e92e58dd539aa6. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/BRUAH2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09820342e337a368d262f335e75d1cebfdd93c2a4aa2954993ac9461f27a66e6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BRUAH2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2395a485326948b5513a34376a787311df81639f68ddcdbf0a23bff5d727f472. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRUAH2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792a8afb9f226a329fff59e9abb6dca738233583665f4fd3a7ae63e15d04ddeb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRUAH2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210f96398a842b15d4fadfaf0538daa7a410d166ece6147691f7d28d7bd4d61b. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZ5FN2341149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de5e7984516eade8f6114dea2cb30d805b7d86724e9b4e1aaba0544ee8f33f7. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GBRKQ2365127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482ddaa5ba0ebbc7c03a505f1a7a2837eacdd3c8ec3bf06be3ba97f5d3f7af2d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWV32382966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3eca6ba024f91fc9fe005b306b1fb9242a0fe083098a0de02483b749b06568. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBRKQ2449214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d321e39f9a48b4908156c95a395cc7743f479028b44e1639cc2e6e262b8028. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWV32443413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052d8a0b5ae4e9a3731d41c358c971134650c25a54356edc825de644f10bce34. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWV32443427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7005f1ff2c6a71b5d5bb0a7ca7935e8ef617c570f0290a14ba3eb0c80217d0. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZWV32443436.
Reis do nada no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e936ffc444a2b8f648fe31bea10ae4f9a96f76a5201734e2fa8166800d44bc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXSSW2400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05883dfb7668ffcaea4996ca8ba2f40bcd058d5e6cfd9bc1917c8706ad9328b1. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/BXSSW2400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d393b942c125ed1818876b017c6a5aff00f3f6ecd51ccfc68295bb1ce47a9d8. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/BXSSW2400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b447ad37a57d55c246fdc9387eb1005a1c9598a90a4d7a6d88f4054669df95. 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/BXSSW2400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d8a89afda6ee0d88df8dea3b41eb68a46fda3cb1e84ee81fa9031742fe7754. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BXSSW2400176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e72f2c4fdd06394578ae0fb803d2c78830026279c8af6ee255a582e8d505086. 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/BXSSW2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cb0023cda6e65358967337f488e03e721c1999df376fae3594ad661b61d129. 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/BXSSW2400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f82b65984c11e98122c65b45e2a14508a1e13c5cdba8fa1ec1a4bb7f2e962a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BXSSW2400179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cb05d7e5a6385936a6d7ce96c1fc73e92b263554249489de24ee091bf9a3cb. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BXSSW2400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f72d6690961a840e7efd2913a548e3b63789fed98e9408275aa0b716ff28fc5. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BXSSW2400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e89776695871435bc5f8dd6875597c7a18d444ef3786d586668e7aba312bb1. 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/BXSSW2400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa120c9d370c8b66173b757d81f8669915eb0b5529d64206e3e7fdb07e0162114. 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/BR3752000381.
Enterre Meu Coração na Curva dos Seus Olhos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbbe5835a7525af64a8d82bbef10bc83db00321a6d469724bed7b4bd3eb3ddb. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/QZGLM2207522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b41095d1ff2d9560a190973573b5d31ff251773ad52c235138bcecffb74af1. 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/QZNJX2131080.
Mal dos Trópikos, Construindo a Ponte da Prata Roubada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1a7cf741455245f98373d55fc19e0adb59352f09d006597f61aa471976a20f. 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/QZ5AB1832567.