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 0xe01604b63e11664514b5843fbdc9a019220bf1e3c12a848b36d76c89f34f5942. 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/d9c13b1f-1dcc-4624-b4b5-46b632822486.json and https://artists.proofprofile.net/proofs/artist/d9c13b1f-1dcc-4624-b4b5-46b632822486.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 0x2c02a548a7e61cae44a91bf89458a690a0b88f5212969f1cf0664586029de9aa. 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/BXWSO2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca59f0defb5dfae96d072c50a55ba47a45b8f80832beb1361da9500e1f1d2ef3. 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/BXIH82000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725658ba87f4831d200b9fd8363800040875972b309c8596006c37dd5ef3952. 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/BCD592200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b14a2002a46995f93587118b711f3f0c786c986e0575d5c6323865d5bc3c9. 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/BXKOA2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c231325f33814546952797c8f1df925b1e679b42ee6f936f1cce42aadeab75c. 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/BXKOA2000001.
Nossa Que Isso (feat. Rebecca & MC Rogê)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdf4f186d644e42e3596ed85725e2b302c5b65825cb17d41a0f490870df410d. 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/BCA2A2300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e915de6e6900d586f1d42beb8aca42c8aa0c5ded58142bba1092788ca82b9c6. 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/BCD592200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0318fab5127bfce8532096cf52bd50eaed19fa77dd82ab338607d681abd3b90. 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/BCD592200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79eb53bd3ef706dc9d0c7e984f745e1c721fc43bb6fb2565e365859ff64cbecf. 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/BCD592200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e05dc158fa25ac6474cd287c42b0df71a2adcacc550f5c571314d30b78934f4. 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/BCD592200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496665ced6a6d4fc5b6a5afd851ee40bdc80687fce87d8ef47e14210e9bf5c5. 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/US7VG1753458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2f00feaf06ada6b4066a28c982ea214e55fd8bd2e73d4cf610e86eb79277b1. 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/US7VG1753459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01ae97a9d4bc6a7774f36fc77c9987fbcfc68d85986ef913c7b85e09a9ca54. 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/US7VG1753460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f030b9d97400754d1df71421e46708826c3489d48a2947749bc96a17bee3a7. 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/US7VG1753461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8899d44ac193e723e78119999f586d686c32f115d88a9c59c0625015f474f3. 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/US7VG1753462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d182c06072c2d39239fa0547f3b13490e35edfeadf84cafba9e946d342ab4. 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/US7VG1753463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24a9c9802c057205108d9f7962f28a115e5b7a1b3bb98aee8ddfb9735503ae6. 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/US7VG1753464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebe32185d1da9e586661eb6e19632298bd777a781954c3f66363ccb6322c175. 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/US7VG1753465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b724db496d3549c48d2b0c84ac8ef259e13a3ca961ace4583be556b75c6fa9a. 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/US7VG1753466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cf02c679abc8e6aeac80c7ce6c53f665f3ae8fefcac6dcf76d6d98c76e06d7. 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/US7VG1753467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92c581ffe48ac1040cbff31caa8bc5f1b0da7e9f11c1a1e3814f67f1d44e716. 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/US7VG1753468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69f083dc2fcb88d3412356ae6e72415745ea245a7056a25133dbf6029ffc98b. 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/US7VG1753469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bd61f0d87742e94021ff5542351be6fd238c9fa624ce466aac5b2132ccd254. 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/US7VG1753470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77faebf0883aabb4429cb9affffbc0c52a8de3396bfe9d63a05cc9ebd286efcb. 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/US7VG1753471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c91ba1e18d7eb4e439cb42982663376a40bd39f720834db747e14b6624b3687. 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/US7VG1753472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb8fd7ce7fda910640ae4afdf07b4a1340514c856e3b0327c1157d1f0f14499. 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/US7VG1753473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33489a56cb87d928f4e0f7c1520aebc41a08bcb1bf4a3752eb7bdf2b30c0b5f1. 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/US7VG1753474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368af41a1f256c729a90af464c3298e0185bf3f971eb9bae174f1b86517737ce. 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/BCD592200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70311e4e1c4bcb0dc7dd655598eadc139a19c6b4598ae3b78d0473000f0570b3. 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/BCD592300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e915de6e6900d586f1d42beb8aca42c8aa0c5ded58142bba1092788ca82b9c6. 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/BCD592200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725658ba87f4831d200b9fd8363800040875972b309c8596006c37dd5ef3952. 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/BCD592200108.
Na Direção dos Cria (feat. mc jhenny & MC RF)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe395e236a4b65346ec8f3ea24a30ed831926ff64ed8faa86631ffeedd6432cfa. 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/BCD592300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0116fd0165c860e73251ff954f17c8929515693cf448604a89671d10a2ea6c18. 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/BCD592100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dafbb6e07e736af97f7b861867c9985c76a14757ea47c861dfbb22c2bc4b2c. 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/BXWSO2000001.
Nesse Instante (feat. Vulgo FK & Caio Passos)
Sensacional (feat. Cacife Clandestino & MC Kevin o Chris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda982b1865cc48a98bcad2704d9c1c8ad06c930b239c8526170d5fe9eadd350. 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/US7VG1615977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8099a0c1f0d4916c91ba0d3aaf7e148fd5973b607cbe80bf6b9e7104e468b0. 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/US7VG1328011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b14a2002a46995f93587118b711f3f0c786c986e0575d5c6323865d5bc3c9. 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/BXKOA2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d36e7ccc1c1e5a50f68a23761ca9098a2e7657af970850319e3c90cecca53e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BX1KG2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954114fe0d3c3705223707fe745675e4157e132358848908b79576a8c5b56b46. 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/BXFGZ1700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d69fb70ec3c983655ba677bc5724e5774029b12aab22da29dd985a41721592. 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/BXFGZ1700045.