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 0x5c2f3bde0fa33e08c1966b2cf1159415d0393c48e336abe393c263f8a9bb6d95. 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/21195a17-d798-4ab9-886f-0be43348ee22.json and https://artists.proofprofile.net/proofs/artist/21195a17-d798-4ab9-886f-0be43348ee22.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 0xf63fa40d6d4954a9fcfa090b36fceb206c190bbd04d0123b5aa8b34c30810647. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FR59R2461166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1282292abce9f17fbb32375e09469bb70eff474cfd817c062ca678b06ff439. 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/BCIH82402416.
5 MINUTOS DE IDEIA-ELA QUER PUTARIA TA TENDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c5d8a069dcee60926d1facc5af45c6185d0d88f038c125dd4f82491c617b38. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZNJZ2456982.
Quando o Beat Começar Você Joga Esse Bundão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bedf048e326f7aab0853607e81e7bd58649ec888fb887d3eb97c11d83fdb8b2. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZNJZ2465966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93d68b051f5957b2ecbaaba54234ab66eece3ca040e13f8ea4e1f253e07b6f7. 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/GXD7V2226896.
ELA DISSE QUE É TIMIDA - APAGA LUZ - TROPA DO CARTÃO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2f51784547fb575a634572bdf5bf7770529382d75fef87bdfe04c0808ce4ba. 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/BCIH82402230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e41482464c833d7ddd6f217f113682fb93e715ba535d12c50ca0a337d636d65. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BCIH82402298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b813d8967c10ad6bb0b3fdadc12552620a054704211b6923114042f5253cdb9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZGLS2504269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3671092b1ea53f14b53a2d19c623fa102edac18b8e3c3e946c6e30f751fc34. 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/BCIH82202146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e0bc112929dd6a3d78bd906e241a403c7e1c145610a6a68365c4092e015d9. 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/QZNJY2432021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc12b7e1cf357ab16d6bbfabe495d4e60f2dd43408f1f7cd6ebef76fd0cfe750. 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/ESA112437174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185a2b7f6ac1569b3f6adc2e100fd7d7e9d3747d8df1eb226bbde994d5fdeaa9. 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/BCIH82201679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd9051837ae02e1fa78769a02eb7859044393ec9d6872a2e171b9d0e338c3ac. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/BCIH82201675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20d5460cee9b035c6e4e440d935e187247ee0f28b9798fe0ff2b747337b7f70. 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/QZNJV2461118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3c66e416aa4bed567430830872cbc54871c7a966795c66e2f114b6b8d7ead9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZTPX2399372.