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 0x42f020e05b51eb8357913a7a146556584ee171e145633471e79bfbad7c8812c3. 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/c2bdaf0a-01a6-479a-8696-32570026c66d.json and https://artists.proofprofile.net/proofs/artist/c2bdaf0a-01a6-479a-8696-32570026c66d.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 0xd5370aab0a96bf0fab7afbff6c87cb83b2197a4bc246effbc9e6a8d7c9defe19. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TR2501000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43dbdf14e596d163c513afec317d4592e6cbac488c87681d02d52ffb0987192. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TR2501000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba92f587ba6b898e467cd181518d97d3dded495821699846c13b02b34421b84f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/TR2501000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5034eaeb1902b1f2b75fb103f32b7adf29878e0dc90336e69e83fdde8cd7e12. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TR2501000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3cc0e684c13d0caa1e29debe2131517eabbc3440cf5732d7ae6f89430fdd3f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/TR0801300372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c54d120f5137e6af34b9f633d09c1c48955048622ba01eb589bfc406b8ff561. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/TR0801300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374e2f163d2f43e62c18f88efbbec26fe5e8c290c940ae0ab4c88bdebf17c943. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/TR0801300369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dc4e0f37d8cddadeea4c6f6e22ac3127c37a37b8d099209250b1490f36497f. 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/TR0801300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd534bd8ae36deb71e76a6629800fb7b190a2a6a979c6c0e591e0f38c218f22c5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TR0801400858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24ebacda2676c7991d5a474ac881952a57457fbcf39599619e22ff2df52b609. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TR0801400860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbd8433eb5062986a030966f7c34304a7c3c1b66598c1a2461327f744a32d9c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TR0801400863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425c83b2a7042a569c11b4a83cd7a385bd01d8f18da376fe824f55dbc3a61217. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/TR0801400867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2da08c1413d2e49609fec556edbd6bb2adbbac3824084a2585de54b3c318ee. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TR0801702621.
Mümkün mü Unutmak Güzelim, Neydi O Akşam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a265541cbea483aa42bee36e7f8967ed1f38d662c81727f2c25b6c67baef8c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZDA42302523.
Bir şehir ki baştanbaşa seninle bezenmiş
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a69f477156bb6f5bc837fe9799cc533515e2ccc02a41eb16103bf6c2839cd28. 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/TR6792402929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb73ce098f7f6d972ae6948b4caaadc400a919e10ec0ed0d121be6fea1f31a53. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/TR8271300008.