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 0x18e704819a831a2dac8a372f01b7bb111f8b6847ecf7441f4756005948d67e6c. 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/5b8d5949-219d-4d2b-b118-8b921a57c907.json and https://artists.proofprofile.net/proofs/artist/5b8d5949-219d-4d2b-b118-8b921a57c907.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Louvando Com as Crianças (Crianças Felizes)
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 0x46c9e61d7e623a6c078608dff401f71052f5f1d67e3ce7373c179d21ebf180eb. 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/NLRD52246202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a838e438e5e954f2152274fa017c97ef97ecac9aafffbdc5f452184695ea23. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRMKP0500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1d902bf3646b91f4d24e6c7c42e7f1456415147fe9ae697710502140c862d8. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/BRMKP0500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa7496b3eb6b3a3d258a385246da6ee652e0cf4398ba2c5af29be0f8ab7f238. 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/BRMKP0500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5ad665a6e6119297cffb28139102cf24e5f1a26846a49cc106cf9f5c6a99c4. 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/BRMKP0500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4265f5d566415d0847fec125cf4f19752e0964eaf35ccb7676c3c89e95e1ba. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRMKP0500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f6fd98fa896bebf50158fe313e3ccdb08a27d16a4e577b8ff430d48276b8f3. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/BRMKP0500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031073ba998358d07a9ac0e0ad6a1ed6e0a0b63b0171fa5af35aa372dfd7752f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRMKP0500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9ea0fce494d49b38d4115f8fa9018219913ba8b66e3e753dcf2daff21642c5. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BRMKP0500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7b2ddf7cd881ee35ade2aa8abd9db3d348fc5c5b4b5417aac60583db629322. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/BRMKP0500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284d5082f421bcfe9a0413ee730d54ecb6e271edbcbdfee587f8c895dec22b26. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BRMKP0500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300df587f3a268bad78e016f8181fef5fb87945c80d2ea6ef8249c9c5d40d0d5. 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/BRMKP0700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e82b30421fdb1ccd7c7820ef7085efe0738be2c4590dbe91d98319dd0d0a0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BRMKP0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bbb9412bafb92378f59dd0bf8cdb74885ab1e716871312e457a185c444d2c2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRMKP0700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8f0fa4d5a1b07694eadb65c213d667985ff9efd23ebd8a7475ce807e88afe9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BRMKP0700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b6455b8e46996ebe8c38f5d5843b2e67f9b96d475a8237229148de6deaa67e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRMKP0800622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7760e90b9b8caae71462e06d153e8e1eebb1a694d5321e061cceb32b7d9aea96. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BRMKP0900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57713963e43a39c45fb155a2d3098f86f3b8ee4fa2733d74acc121cacd782d2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/BRMKP1000424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dd6c7bda092ed03da0fd1af1d064f6a29d2e6822f32687faf049cf8d453ee4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRMKP1000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36199aadcd1c2478e4d9589c693dca7f13c47598b8870f8e0a14052a22c95ac1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRMKP1200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5bc4b515fcca73c42bbc32d25772ac6a5f7687df336edc2b2434bd4e3c3f02. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/BRMKP1200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129e1fb378457c300479d02ea40e90795a2a4452e12ffe6c1d4cfefcc21c0f7e. 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/BRMKP1200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a2da27777215ac08d2b76504a2e42e628b6ddf6a734f4ab0b3e9095910131d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BRMKP1200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49249a10a357d04fc5937a2619f6388d20218a2889d9d085fc21101516578dd. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/BRMKP1300674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd84c1b6bf5608ec00bcd2385339dbbcd77e6e0d0a68b47e76aac848b73fe00f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRMKP1300679.
Andrea Fontes - Gospel Collection Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5065252488c888f9fcbf57c8f916642780fb7a52c15a2568374520b9bf290. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRMKP1400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10cb466bd504898df3b2e142f1d414cf1c68fe8727e3520966f575969f72d87. 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/BRRGE1405102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff190df9537b7fdd8a787de9987f75b751776299c6ff8251b00b6f0d3b4b7275. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/BRRGE1607633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670b50ee227d87f790f0b6ece16eceb476588e468d14516f7ecbe7885b8dfd8a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRRGE1700907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232f48bf3c5fb39dc9a5b7998984fbc86d8b9033f8a477fbebc20de371cd2fdb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/BRRGE1607634.
Cante Com Andréa Fontes (Série Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577dd35fe4625088862cf98296b915ca23dfde6348f876cf94466095feb2ee42. 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/BRB7B1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc7d45a4a7149c1f0885931b30556335661be2cfe9cbd9a7f63d5ebd78b7c7a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/BRB7B1900009.
40 Anos Cantando e Contando Histórias (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60bdddc34b04be4d1eda70d84f2d992b69fdaebc1ab77065578baa462cb6e26. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/BRGFL2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58acee505119eef93f6080317a6603749d36bb92abedb58a3a032a805c4c1dd7. 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/BRMKP0800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18747be0a33e62c35d4d3d3e947c2fc13a2778098cd07e3a17d70e1800207647. 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/BRMKP0500022.
Basta uma Palavra Para Mudar - Trilha Sonora do Filme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a176cf298eef1532c208c1955f9cdfa8af1c9895acb919c48e50733ee8beb9b. 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/BRMKP0500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61f9b04e97d466f53c00cb3e6ec887b03718ba5694e1b5f36179f16cbc1eb2. 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/BRMKP0500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56be3947cdb94e7a18661b4f9d9d84c3bf7d183b7cc28893707c9b82789133e. 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/BRMKP0500121.