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 0xd0fabb4df0ebc39e69f3bc94e79b8fc295fdc0cad41d14e19c7e8deff639beb1. 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/f53abdcc-36fe-4059-968b-b7a720ebbba0.json and https://artists.proofprofile.net/proofs/artist/f53abdcc-36fe-4059-968b-b7a720ebbba0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Show Particular (Ao Vivo em Goiânia), Ep. 01
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 0x9980b07716fce51a8a813399d7a869e9d6ef929a7591b8235be5c44ab1196cd9. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/BXCVG2200001.
Show Particular (Ao Vivo em Goiânia), Ep. 02
Aí Eu Chorei / Haja Colírio / Te Amo Demais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff08dad9094afcb41f0cf0edf1724cbc7676770ffeb90ea1e7a5bffd23a2ed4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZNJV2362891.
Sofro Tudo de Novo / Me Amar Amanhã / A Rosa e o Beija Flor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572ed9b15f19db5da59e053668dd01680ada26a1742285b78053da37bfdb2b05. 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/QZNJV2362893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b88b1137ec8b4c4be36e709bd3c6de30c9b7669599aa1bfac33991ba47f873. 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/QZNJW2364190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c534c87a2e7136ad022c17a29db572182482d9d8ebcc157c540c0a4c0daece0. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZW9K2319099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf6e1eb352f88707e2ff20a6f06e4c6d334bab3755316afb0fec20c8b157f43. 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/QZN882419480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c40109143a4be58fa18c0a6b27c384ff5c45ad59238dfe6c70dbd99572c854. 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/QZN882504330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d595a3e0f48f40f2d7c3d4ebf7b5e4523bb6a36613365d51f258f778620144. 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/QZN882504331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ac418d74e5145fa5a417d165df09b37d52bb98bfcdcc2882f6e950cdc6a617. 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/QZN882504332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b52637a8ae8ae83afd4a7a48df43345364b2d75f4d2cd00bab270b014db989c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZMZ92502503.
Pão de Mel / Seu Polícia / Dormi na Praça - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9f658de245d12724bdadd81f2f5b69fab7f0b6f762e913bb86ebb79608acef. 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/QZMZ92502504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626247a24e00392ee672248a08f5d60dc9241cf3767f4ad6e504c518cef88323. 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/QZWDW2533174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cff3e9948be2918e96d2e4b3260a82e1eb38952bd9e015e48b4a850166af6d. 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/QZNJV2583488.