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 0x52549a40552ddb4f6b840845795e15353d16a7f8eb2b34befe447df32898ccac. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2177874e-2a71-4515-b8dc-f12c48cac55c.json and https://artists.proofprofile.net/proofs/artist/2177874e-2a71-4515-b8dc-f12c48cac55c.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 0x2b91ce3fa086644bfebe9f20138936204432e86baff4ba940fe2c801738104c3. 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/BRDEP2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a90aab7af6119f7b9867b66283a4f325e40c615a08b66f028953b5397c27168. 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/BRDEP2400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8058df51ee17de934b20f9f581eb73317b13e961431ab103547a1ce9c43b05f. 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/BRDEP2400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3919e628bd606483af32527b40655336cd557a7b9a736939854f30762f3654. 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/BRDEP2400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ded9bc1b04c42f3acefa7479af2dcfd8b1da7ad6bf2e57cdc18a07711b88e. 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/BRDEP2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd415d08082c339f3f1c769fbaba961f1e16f45c5e93e01de62205f06a40fb32. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRDEP2400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee71a0447f423545cd2508569f9070f1e5de9f261d504f85dc54a4c8443fff21. 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/BRDEP2400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a29a4973c078ccd02c00d98c73f1eb7adadbcd11e17f4b2f9ee8fbd46f2333f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/BRDEP2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44944445a02394c66faa822077cabebf1c5281439e9fb18d5d9e77529813b30. 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/BRDEP2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1379a6c6f4286f8919943c516a0fd2bdbba0654a620945f3041a0546d802438. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:43Z), 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/QZNJZ2440467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58af72c5a50029862d5fd72339ae4508552dc24c773777d8da7b75a71972278a. 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/BCOO82100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc825f768d39ab677f3be62adeb531f1bdb1f160716c3642bfcc58d731134b318. 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/BCOO82100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9084c98639e310c17580e36edb164c001f8347cc7d29628acfc7db42d8e952. 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/BCOO82100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a19bd097359f9eb7bc525bdddefe90647fde8e7dc8c2e00500b92f18c95d8bf. 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/BCOO82100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95eb3c8d1a7639d250f11933d2edd0c95c463e93b53346371923637d2f67266. 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/BCOO82100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571e6fa6c3e6b1c882c4c5cb15c18c994e882b45922785b5eb3b60cbd6dbb838. 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/BCOO82100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfa3c674204f6455af1fd9cbba3b8265038b38ca4071131677c98b53f3116d6. 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/BCOO82100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090aeda6f90f98066b202db73e2642c6399ed73a0d486396d2d9a2ef61b0a735. 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/BCOO82100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408d82e958a1e1d40b7ea386991e53fdcb9981f3963e482c082d0472c27b1b36. 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/BCOO82100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24194d87027c20c8290fc94d977ec673c9da81252f94b244002ced1b75d3b95d. 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/BCOO82100019.
Quem Sempre Teve Tudo Nunca Vai Entender
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683f2f75213566a90f666b429ca1c92899ebf683d7a09a547ff07ef7d94e2d74. 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/BKNBN2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b49eba9c11043fa46ae21c78782f04474facc191abe6eded255a68dc23ee3fe. 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/BKNBN2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17330454dc7fa380690993ec78c2d7bd7f32dfea1d41f11be87b6ce8ebfa6ae4. 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/BKNBN2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44064d77c2805e56714724442e0cbb18023fe499944af1ef0f69e298d9253f7f. 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/BKNBN2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868b0df98b0b399c97296515c262bf6df959b9a86c0da7e1ceef17a5669abeaa. 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/BKNBN2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd334887df613c67568f2352b009c3f6f903a19189be8e4eb2da1dacb8a5d9da7. 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/BKNBN2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58033b5658f5a800a546c822cda06c1b1c9583eab5bffb113cf5e6c0ca23f4db. 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/BKNBN2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc2a27bad8ecdf727391723e3db445e6a0d131782f17ed515cc8d60161ce0d0. 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/BKNBN2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edab5c9d80ea5e0e1d73ac4d31f85e045a86fd7491941a7d0335a1eb5876002. 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/BKNBN2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2922fd99b915f295e3dd4097e1878dcd4404338c00d1548c300f2f7a05d2a9. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/BKNBN2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596acfde60f9850fc18283ecbd8c95918762dd0a1e595479885add52d7aa2bc5. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:34:30Z), 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/BKNBN2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31008b5a11b55ce33bff79f721026e60dedc4f07d5924a68e9eade4fc94a185a. 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/BRY8H1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6f0d9c1b5f8753db88e1de6491803086a97abbc57fc51079cfd8f9ae70560a. 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/BRY8H1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923bc6a55747df10d1545e9fd9487a6deb17e6923b608c1ffb26667b0797b571. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BRY8H1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534498f2d93ee92032a998805d20e1d609bc5efc2800dc8271c17027b4574889. 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/BRY8H1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e886f9a8ae9059871fe39703fe7ed2c53cf18073c24dabc66cf18d37126cc1. 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/BRY8H1900026.