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 0x67e34c4a5124570799669f0cc0d7ef58dfbed8aa68c4451b7890f08af31aee80. 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/8ff08fa9-11e9-4fe9-810f-41ecef8467c8.json and https://artists.proofprofile.net/proofs/artist/8ff08fa9-11e9-4fe9-810f-41ecef8467c8.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 0xaeff77dfaadafdc88f0cf4b7e7260f11f5a79a235b76846c3a519694bbbd302a. 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/BXV601700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095e7d5d28891e84750b1f3f71b6976f55493df833727e8dd22c11d84cdca1da. 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/BXV601700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2237e1eee0d57cfcd8f4ab2e1c6f67e52530ab0c7e8b6bb40088ac03f306484e. 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/BXV601700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb912a512cd97ea9abb9c3bf15abd71aa8814cccd5d86462d59527fe66862aa07. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXV601700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4326972c09e18b01c64e54a3b268afd86d2f5b70e2c34b140dc12a1f3816180. 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/BXV601700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc466d245c472f79d09f286c63f4d864ce7fd47afd75f1a499e968673e4c083ef. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BXV601700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57751fbf8e6f1369beccd64941e23fbc44e04da3b9509c23c18388f4074c90e9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BXV601700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed04f915e7f02cb312f139508d065c56778b2728eeb30d8a43a12c48e0e5a3b2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BXV601700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aead913146da8890fc947c5504fdfa6b994042d8653def3fe86d3c2ce4577c. 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/BXV601700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab267f1304e87a358cbebcec8d0a16a7005e39e8a639609263c260533605ac9f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BXV601700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f3328209c0f218afccc08b0efb47c261ba481d9046e05833efd742fe74d442. 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/CACWV1998718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7933b63bb33cb57b099d9e044e3241ddf0a18491d097222589bb5a1c16126441. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/BX94N1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37806b94884ecd71f4f6aa79bb957aa203bc132bd05f204d4949398e574225eb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BX94N1900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f73fe39c2250fe63c9a1c66858ec198aee4095df713a15dcb17f92b0c1ccbd7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/CACWV2233170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140daae8e6a3a861f49e8f5d5817cc5aff107126c50aa8e4117ea32050f4826f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CACWV2233171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305cc146499df32f190a428ff17099ac800142e07b22a5305c792e30ad5fb61b. 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/CACWV2233172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31361ef0bfed17c90f7dedcd03a71c243d8eb1f3ad3023b7b1326bf50d94b7a1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/CACWV2233173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1238d88c718e7e08c344e63191195cac17a6f2c7dd0403a3d5bc7de4b542071e. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/CACWV2233174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40a4da023454b7959041ce368d0def56afec72a323964f1bd8b77349b76b2f7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CACWV2233175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c275ca974e838692351f3cfcb1372a5f8503aa1623b20716222348bc4d4020. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/CACWV2233176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2b36c89ed93df73889b5a44c1cd322a924b3bed2a0c01d20dadc28150b963a. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/CACWV2233177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa06ab4d9f86275aa245b9a2d4ccad62faf103693a5d18b1abea2bc1368ac6e. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/CACWV2287505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3090247d009b68861f8f80fa6d5a4b0602ba0de03203d56e003aca5c23ed6857. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZMZ92293156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff9bc4c28043e53cadc9f98eae460325006e23fda38f6f8eaaca819e9d246f4. 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/BX94N2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760dae048510e621e8de520a93314f32325c3699ada1a35e6e4fbd2e550b42fd. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/CAHQJ2388239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760dae048510e621e8de520a93314f32325c3699ada1a35e6e4fbd2e550b42fd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAHQJ2388239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1f764fcb61006d17c2a8263322d0418077c1d88c5b8136f86bb6a4cce9a0d9. 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/BKAK02300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5096c7e2c0824d9a79b78ce4f0cb7db3682b37d3de7a3b72ac5a3ecbb479f7. 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/BKAK02300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2660fae541dd166629714ee539c41a5a0e41ce29689729a6618b5c7087a426. 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/PLF241401242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c623120ffaefb325deb197c9365b76f921ba8a39b0123473464c1faf74be289. 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/QZHZ41978268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194dc7941a466d5c11acaeb508d99001aa285b96cd0d0f3d9c5d1c654caad07e. 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/QZHZ41978277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9806b483cc27a8953923cee4cc07eb588c2aff6c5af9924e63af7a3b8b2ed9e. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/ZAA020900329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc955876ca6072147e734f40ab4a8e71d0cdfd93146b61db8a066c729f3c44cb6. 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/BRRGE1911314.
Mixtape Eu e a Minha Habitual Falta de Moderação
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4606f4497347267edab4e1fd5176a99017ffc53dfa0ed076e2dd1f86d8675392. 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/BXDGK1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550db17bedcb7c59f7b5217e79551c1af6f1e033b3b05f12245beedfaa6c0039. 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/BRC1S2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab336f5140d35374d1f042968016186ed728c86d050a2ccb3b1c318293263d73. 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/BRC1S2300013.