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 0xd00626b5355aaabf59ead3cbecba451b1b342d48a1712a2bd9a5b844dfe49664. 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/b88b7c41-8bee-490d-9dbe-3b0a90da838d.json and https://artists.proofprofile.net/proofs/artist/b88b7c41-8bee-490d-9dbe-3b0a90da838d.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 0xd4342af5ae54086b52ee349813787a6a0cd0c18507a9b10c4defa8b5bef39a5c. 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/BRDEP0000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e2e41119772cdcd32450b764d6b78cbff2d471c79c1afb37b29db2e9c7ca7. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/BRDEP0000188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5963b6f199a51fedf00fb41c6dce747dfcc68eb37f60d650773ffcbd9752aa7. 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/BRDEP0000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3748371961071706aadfb52c065e0b8f23946652fdf639d6a92bb778a43edddb. 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/BRDEP0000191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d780fb5f3cd8b1b0501776a8c64138d18e764e004c518e3af919e3744f1bc8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRDEP0000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57e4f802c60448a416227c6c395a52433bdcc21c3cc8eaa8033b4c7e85a24ea. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BRDEP0200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c892fee73a5151ecce0a77ac43b96ecbf23621974a2b2b0d28c21c8aaff3f14. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/BRDEP0200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1330392301026190c8d93ef0d7e6704e753d278639f1c1beb2302dd310919e9d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BRM2P0400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a73b6b7c5e17624e1a04289af123ef0eee0351e52e01c44b33a4e6e20b701fe. 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/BRM2P0400023.
Eu Só Quero Um Xodó / Pagode Russo - Live From Brazil/2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867f1ea1305d4a921e28e21665359c8d8f124009766cfb3cdbb6930884e3e135. 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/BREMI0500228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd1ebb25ffbf43bdc0d528f4e31df89c72e76698c0a36a7d764bd70c3a9eca6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BREMI0500226.
Feira De Mangaio - Live From Brazil/2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30f657fdaf8804958b261fd7d094876cf43c175845785db2434313a7d4014e3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BREMI0500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea1ba3d88b4f2904d85b37770f66eb2650852582840c4e5a744a0bbdec5bf50. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BREMI0500234.
Eu Só Quero Um Xodó / Pagode Russo (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065b7bbfc9362df729eb0462b955061d424b103bc1c9e7705ea9592a5c67ac83. 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/BRDEP0000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec55b297ee7ef390e016119854cebdf50ed1371433a44e232f4c12f993d88d5. 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/BRDEP0000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aefdc0b703ede13fd2fce0809f60c24d5581ae68642baedd03cda3510150f11. 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/BRDEP0000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29955574cf4911df90b178736482882b12129836e3e48d0ec3b8899f2248a39e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/BRDEP0200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a851f1a34cc12bcc42da8fba485207a3dcb5b6ab14523d48cac00cc1821ed0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/BRDEP0000181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703c24ec80b21de1f16330db867cfe0bee8cf774c943d1094eea0e677efa6bfa. 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/BRBMG0100368.
Quando Bate o Coração - Caboclo Sonhador - Espumas Ao Vento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94de19f14876605852e5e6bc86c446da25d56a1cbef00f9d4594c905ec9614b9. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/BRDEP0000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4833c7e34a5d03e296e184a3db6a6fc7e3c67ecbab7f201d3420739ba5d115. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BREMI0600309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fccefb25034b972877695560ab15466e72d595d2cb363e16e42d0df0712ba5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/BREMI0600312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995e3bfb812c40895ceaa684ab71534b656ca16cc516535f8b666d2681c17af9. 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/BREMI0600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065b7bbfc9362df729eb0462b955061d424b103bc1c9e7705ea9592a5c67ac83. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/BRDEP0000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec55b297ee7ef390e016119854cebdf50ed1371433a44e232f4c12f993d88d5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/BRDEP0000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bf73a235d984ef73961493ea701e597d32f71f50aba09fde233cb3c65a6a00. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BRDEP0200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28438a27fef4b10cc1e55e2a77d48cce29818d0d6c94709d4b305e7440d01954. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BRDEP0000017.
Eu Só Quero um Xodó / É Proibido Cochilar / Vem Morena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26af069c9976d14a942a3aa4d31991497731ff76d0afc60cabb46e2dcad09d1f. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/BRDEP0000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785bb1e56e948ed03cae32777729feac27d097c7fe52b3386ed47bdd85689522. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GBLFP1860275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25ba28526898a32c8fe02cc7b59dfe574596a261f6ae50eeb68c5248b09a887. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BX3ZW2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ace683bff5dba015e0b41372acff673daf5db899e246d6d8043a1c84b3230a4. 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/BX3ZW2000013.
Rastapé no Estúdio Showlivre, Vol 2. (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a2d48de44a28b37a71c86667480f1635bc952cc8e26e22e6830dc45fa770c5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BX3ZW2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39734134a87d8b614fe10b05bb8ccccf2dcb2f847b0eadf638eb444d7f40c897. 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/BX3ZW2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484d4d0c33e29a7adb6498ba7ace6f3e00c5d96f583f2fd2b9500417f401f5b9. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BX3ZW2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b9ae80f9f5b224ba82d7bd1d3c22e5e7cfc12b575855fe0e9f6952e919f62b. 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/BREMI0500275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6ac01afd4df7d44f8c8d5dfafde9526329c3aba9bb7a8d3a82ee29fef75329. 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/BRESM0100313.