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 0x85cf3e848074b158e3d79c2278e9d6432ffe305928c773f95ca4e469755b6932. 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/83628ec1-09ea-41e4-8077-bf84a9fa4ea5.json and https://artists.proofprofile.net/proofs/artist/83628ec1-09ea-41e4-8077-bf84a9fa4ea5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mandelão Avançado (feat. MC Renatinho Falcão)
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 0xca3966768de0e730e4f701f50ffa72e947ee84fd7289056f031e20788623b217. 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/QZEQU2206220.
Automotivo Terremoto: Treinamento do Bum Bum
Bonde da Oakley (feat. Mc Backdi & MC Bio G3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc3f23268cd884ae0d0423a35231d7e2247df2a49d6ad9c0099ad78a990015d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZEQU2144895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f4276144cd681eafee99d9c0969035e97dd23f38fbbc8a9e2a5822a82bd38. 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/QZW9K2230515.
Feia Nois Só Bota pra Mamar Vs Cocóta Feia pra Crlh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2425e3e33b85a63a308c045c16cb376628a96e39f5f76230e6634225d3613879. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZTVM2415884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb849d432a85e81ad1350bda901dac59608ca210dcc9f171a920a7dcbc3cf9d54. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/QZNJZ2422841.
Metaverso - Sou Canibal - Slowed & Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e179c0dfebbf54b8722140d0073ded67a1863edd95bc0532d19fa0f5fb594d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZNJZ2422787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166ce07ac3bb8d9b2d564001ceaeb223eca0b29b77cfb9e2130b9dae12800028. 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/QZNJZ2422834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412ef5d13489a80721a747d566cbe00cc9b5593448c9162e02dce6348f47619b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTVM2478872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068262836eb9f97521f692660c4c2cb10ae437dd8ec1196f9b683c37f7dc88ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZW9K2401376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925bf6adbd36be8938859d8b141276b314537611a32245d97934ef67140231e3. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/BKZM42400802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd74ab57f6cedec285bf6189d72dfb8d6dae98821f8cbf21a7f25c79e4c4b22. 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/QZW9M2419125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c7bb9fdc93a48a1a51728513c00ae483470357dc98399474d074ab262daf80. 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/QZGLM2585098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085bd80d19a42d0f66590c44090836481d912dc67298a39202d0032dc28481b5. 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/QZGLM2585099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2771994e0ed430345ceea8b62c4e90d6453ddf50087600d24bb7198063400e0. 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/QZGLM2585100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc373efd310906ef11bc4d88954537bce4b2a0f07349a3faed0c0be8c494cd7b. 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/QZGLM2585101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58771293e3d733c538b80af611c222604f507ac2df06da34734db52b80d86209. 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/QZGLM2585102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c5dd5dab9eb97c1cfd4bf7c9b5bdce79163a5f3d2d617990e9316c43c2fc2c. 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/QZGLM2585103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11a2e556678858472b9c420f7b0548e701d7c44dad1ee064b364c772ff6e600. 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/QZGLM2585104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc2256a2462bedf653d31eedefb643b1bf7f7f7ca4e5b983722284ea27d694f. 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/QZGLM2585105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083693f8d6453a707936b744f24c670450f078539eb4802905e48ffb8371f55e. 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/QZGLM2585106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c26262e12b424c60d7391e43d133a07c3e3a6d121578cd71de5176f84a18890. 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/QZGLM2585107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe8d9d22bf517131d7bec4cc86ff553d37459330102118bfe4da2886cdd08ce. 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/QZGLM2585108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f4ebf9dad62243e997103a0af68bed3456b2eb3ebbc4da1bd1f446c17dc50f. 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/QZGLM2585109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d839a1ef7e8094d702223b5f4756d5cc1e80ac5228a75f0e256be8e18bf44. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZGLM2585110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221bf74ba1f8df083afd6e60f774f3b8049d97c924d162b3a0b58981571bd3e0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZGLM2585111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb372f4d959a08b95bcaacaf897370500fab641b32fba9e5976a20433a4381a1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZNJV2546851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000fb7a9af30ac42278b60dcddc74b0d7ec0bce7c6404a3d736a1358d08af774. 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/CA5KR2540536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835b159104328be5379fbc2148f9244b691ed8ca2517ece2940dc8cfead4d72d. 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/QZNJX2538430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10d69b6036b446682ba96d6eac2f4739905b1c6674373bc52eb9e2570c72748. 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/QZNJX2553681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16bf916270c2f44ade637a16b15f342cb03b37c7179fe6af50fc6ac4c28406d. 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/QZTVM2516035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbbd1eb674aab54724783ffb3798e6e0ee5cda5ae21fa5f7fa17c2c1c9e7bdd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNJZ2497102.
Botano (Útero Baixo) - Espanca Útero - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa577f34951e002cf72ca7e9392154527319ef633485e126420b5791d4048781. 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/BKQCN2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4f0b264ee111d5026a4ea27d4042d0256d13681cce7373d503825e60ea195c. 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/BCE7P2400413.