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 0xec57c88a2fdcce99239c59ac491932cda2b2c6df3fa55e6fe138e538dec75ea1. 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/e75c1990-04bd-494b-956a-e21c8948faec.json and https://artists.proofprofile.net/proofs/artist/e75c1990-04bd-494b-956a-e21c8948faec.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 0x18170a8c76d5e3e007f9eac6ed6bb7d7207446e2e893dfd3c46a9d4411603e1d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BCSIU2200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed462d67c28fdb6064b2f068156d9cc0f5f4b2c1361981a3851068b92c273e0. 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/BCSIU2200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2f8d5a2c066e9fedf58ca3fdc6fb01d3eda4c164e4503e5540735d95fc482d. 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/BCSIU2200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821334e79b2a3f93decc4dfc23c47862f4a46e58891071357ba6f08ac83a3656. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BCSIU2200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8afda184c354ca717fe53df208df269ba967d67b54bc3e543a6010e1892c000. 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/BCSIU2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e619b53b9b2dee45aad066c3cbc8d2aa82f78655305d368a972722a3df06b2. 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/QMFME2309416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d8b6c415a24381475d03560984802830513455349b7f67727adb4b2218e757. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM4TX2415409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143eb297d1a159021853bc004a06158d314d6c322628e263a7f6fb872138abea. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/QM4TX2415410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7e9e812857251bcdbe495d580824514546268319b9e8004c1826f4135c030. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMFMF2455550.
Do Nosso Jeito no Parque Vol .1 (Ao Vivo em Salvador)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e87638e70dc35658e254ef083f3ce64d02ed6b8abff69e92328975c29d3262. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TW2515738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7f48b864cc22ec4ad3924b1b557ea3c341fc65cc3d9940e9fd1fda64499e6. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QM4TW2515740.
NOSSO GENERAL / DIGNO DE GLÓRIA / ESCUDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3358af6d51c1886bd54334c32b3dc44576e1664ff1604f808a608fdddd2ed7. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QM4TW2565569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc598dd022324f776140c9bb54fa493a8852b69cf8424b8e408b85042076b7492. 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/QM4TX2562239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1e57604d35009f0bbc5fb044fe8efda604d494cbfc9964bf84f89d72076230. 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/QM6P42590153.
CREIO QUE TU ÉS A CURA - Ao Vivo em Salvador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d262e87545514a8464341bf717b054708045035e7eb8637af955678d67e9be8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QM6P42590118.