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 0x14ab7692218498adf16928a483efbb4a4340034dc1b896f2a2043993d28c4c17. 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/9a00beae-f526-4b13-9933-0121f7b60543.json and https://artists.proofprofile.net/proofs/artist/9a00beae-f526-4b13-9933-0121f7b60543.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 0xddb5eb5670b8aed3894b063e19dad8364e098788f7ded8ef1a85425c5a519052. 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/TR0650600332.
Almanya Bad Kreuznach Kaydı (Canlı Performans)
Adına Bir Çizik Çektim - Versiyon 1, Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe653730222c13c975a6540ac9d6f9e3cbfcec4840b1f1b2baffb8768a7334261. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FRX282231634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b6cd03ca66dfd28f5f08a2e94f3d530e557a74414ee6d73cf2ac2370e3b5b5. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FRX282231635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0753758943b422f9da0ed8327b3aa29be36e0e3e82dd104eb6e780cc35ad13ba. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/FRX282231639.
Adına Bir Çizik Çektim - Versiyon 2, Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75fbd2954336545d810bad7bd7c578b399f8096baaf2943637242db9ab3bdb3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX282231640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4730fc071eefa053ea3a76a00347f013bf16cae61367fc5fbdcebe807c8aa5fe. 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/FRX282231642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb4b245788116c6458e17ce5b17111c4eb69e3cc81c2a33196133705e8eb1c4. 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/TR0650600534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b07ce3a8e1f3357a9373cf6766470aa10b1dfa5fb21bf8ef13e5b0e3acaffa. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USV291357299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ed30dc92adb878bbf705065a362253944722211cf87c63591bc60058ea020d. 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/USV291357300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4495951e1c1fb52fe77543e44ce8a46ed23bac2b9a4e4970e4e64cd3e8fb4bd. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USV291357306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe668633045dbf181ed20942470af1bc8f304dd1dafea0dba4625a4951fde807. 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/TR0651102981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38aa50f2b68e7bf7259ed4dc93db745614ecf8a60337d04a6edca665d753c60. 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/TR0651102989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b779b8ad7342a1b96c687412e27f623608279c781fa00ffa14109e6a1ffd4d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0651102990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad144cf075cb1084abb371da1db813b8633f61e6d4ed490fecdfc53945cebc1. 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/TR0651103022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c1be3939342a131dad93e8b1fc2c328ba101548408e526c94189a7f32275d0. 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/TR0431603078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49caaae73bbcd497d060042efdd0203407d244274976ea66cb5409a5804218d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0431603073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2665b448b4d9e6468d084e3ec94c0d0464db42dc3f165ec0e8462bfc4a96eeff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR0431603065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d68e368cb7d770735d5f09645b38810e2b3e95cbcf4b5c23abd772042b4def. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/TR0652100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789a70ed69ab91b58798a295bb7f5faad6ecb55214bca0863ca07116ddee32f4. 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/TR0652100025.