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 0x247876e93bc025773c7e8363fbb86e037bb96d2b4ada7a4845e18427fd6e3600. 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/e13c8c46-1dec-4828-8ba8-5a11a2969b55.json and https://artists.proofprofile.net/proofs/artist/e13c8c46-1dec-4828-8ba8-5a11a2969b55.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 0xfc7929b46c6bb61563d1de1d714fe241d7693b97693ca0c6f050262185f1bf1f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BRSME8300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1637e44258ce9ddd1200ab174f24bb96a95db0f5918d5b9b9c1a03d4cfab6c26. 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/BRSME1301115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c42091b87a5a9ea6c125c0ef57ae43e5b60911e6168d7ac7c1ba679378e69f0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/BRSME1301087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908700531a4f7b6c055f0047c5facc8a41c3c06502383c0e1666ec6999e2bbda. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/BRSME1301090.
Bobagem / Primavera (Vai Chuva) / Gostava Tanto de Você - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0ce1f357fe3d3ca3b6f0ae9df381c3367c20c01dfd0d499d9f6dd145f6b857. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/BRSME1301121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adbfd4fbe9352ab7d190e32bcbaff61e7b6e1bf6115da99585b6466ec55d884. 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/BRSME1301074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a634763c029c88450747bc36acca5b9c5c6674ed92201f4bb21bb1d218680b0. 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/BRSME1301082.
Solange (So Lonely) - Remasterizado 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b8770ee79dbc39d5c9df041eae1ba64c0d21269997327ca776893adce759a7. 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/BRSME1301088.
Cobra Venenosa (feat. Selvagem Big Abreu) - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef308c1a9b74fdda80af02ee0fe8d25a324977738e2c03a34a7ae1039d55f8c3. 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/BRSME1301092.
Conquistador Barato - Remasterizado 2013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d4bbb5ee7b192538e6e3d05a9f32563bc844b4c1099f39219bb1a179cec745. 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/BRSME1301101.
A Lua e Eu - (Faixa Bônus) [Remasterizado]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7095d12f59abb21726998c4206bdd1cfbcb54bb995840838348c1f92132e8718. 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/BRSME1301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cef367ddb8594e0e2d204ffb45248f4f5a9b180773d633bf9a49466f4017be. 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/BRSME8500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc8e1055bb084db03e4acb879890d7dd375d00b0f78431336d4739764fb09de. 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/BRSME8500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe986821fdbc01421040a494c977d65d89e1920d80d0745a165129910edaa1c. 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/BRSME8500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1866e8744adad15e656ca60e527f3db008280b18bcd2a23e4bc010086cf094a. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/BRSME8500095.
Bobagem / Primavera (Vai Chuva) / Gostava Tanto de Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a2ddbcbfee5d6cfcb0627a6cca45a5abfc77ac3956d10b54ba824a68d49040. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BRSME8900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca22ba79a926bc81116cb64771b8a333179dae129784b453e246bd9d05d7f04b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BRSME8600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a48499a87b5ad4770cafb5df700538c51e53c73267f93d52e6be9b7e826512f. 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/BRWMB9801218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923f399a56d41bb5284f03fb28a6f268a0d0a8b1f13fa212d1c6d3229e477858. 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/BRWMB9801223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc8e1055bb084db03e4acb879890d7dd375d00b0f78431336d4739764fb09de. 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/BRSME8500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5915a81c5ec507b33c095cf45dfd81f0855f93259ea749ed436f2175e11cf1. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BRSME8500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4d18ae1c16822727cc8484e894473b4c0b9bbe8dfbb9a0bc5b5383e2c8fe24. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/BRRGE0800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5709241acb1b9b84360ebf81a2f1b009195c41681515ec2dd3b2d6c32966fdd8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRRGE0800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef62d73ff33c823f18993db4052810e3752a0978ad79f391ab3a67c694e96a8. 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/BRRKO1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2287e709731d096ee08b4e34842fa7b53d419a1a812abd8fac48b4ebf4a02. 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/BRWMB9701492.
Em Dezembro de 81 (feat. MC Koringa, Leo Jaime & Dado Dolabella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fceeaec5d06a683920d2621a27584bfab969fe783c04cf2613d18d42ee925a0. 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/BRIVM1900002.
Em Novembro Lá no Peru (feat. Leo Jaime, Guto Goffi, Eric Barceleiro & Lucas Frainer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb2bc703a6931669df4ec125a4654438c6f967315c5990a28425077f4fada3f. 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/BRW3Q1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409fa8378ddd17aeb099defe98209e110bc830eb56a4d87888c102c60bebdd47. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BRW3Q1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af760006eb166d7853708cef827f319ded2bfce005196c62c25f215696a8f6f. 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/BRSME8500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127c80ea28fc7b63d3681fee4e4131eee8d0259a08e092693965f3f0e5a4048c. 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/BRSME8500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c13436c9d3d16cd11a979ce8d7fa8ae4f5d2073e755c9b88944c3d2ed84f4d0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BRSME8500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52c0d97a03fa895a5f97ee095174811b33adde30c59203eedb8c19730617af9. 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/BRWMB9900790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2287e709731d096ee08b4e34842fa7b53d419a1a812abd8fac48b4ebf4a02. 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/BRWMB9701492.