Lacerta is one of the 88 modern constellations defined by the International Astronomical Union. Its name is Latin for lizard. A small, faint constellation, it was defined in 1687 by the astronomer Joh
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 0x1bf532d1967ec93b130bf2650ebacc4251e39bc78a24dd294e9d822b5dcb4a28. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d8e319c-da80-4e72-8c6e-1bc88ed7812a.json and https://artists.proofprofile.net/proofs/artist/9d8e319c-da80-4e72-8c6e-1bc88ed7812a.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 0x426605fe31b3f4758304fd133c654e497e3d16a096160e205ca192b0058f88c1. 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/GBKQU2292923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af76f9cef1e3d04d80d9b953834db9cd1423cc9a8c529ce57b731932931fe1d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBKQU2292926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde19f2031bd8860d4e7ec43a861360ec66d2011d26ae77898fea37d6f17ebffc. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBKQU2220816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7908cdbb27f125a53b1c64ed9673737ae13238487858ffd66b19327acdc9df7b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2220817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db116c6908583ec1b88687ae56aaf82681d63c4789c54b05215de29941ea095. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBKQU2037018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b94ba262b1a267b7bd053fd39df94c0490375b21dfac1f86e3e0d804d0c5bc. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBKQU2037019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baf0573adcc6f8b579ca2cde55b83664eacb004e9311435c847e930ddae9df1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBKQU2037020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7f6316e9d27e56bf9bbf380ad572c5d2de8d52068f717e37c7d92f52e23505. 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/GBKQU1895407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe602f0c01afe89d3332ad5549955188cf894fdd4a6152d8e43ac320479e50aea. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU1895408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91ff4323cf55e5054c21ef6c4eac028c603be9af27df50eae2e0b504619dbd4. 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/GBLV61507311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7baa6f945f3f3fa7436ea643fdc285e547bb53cc3d24c369dab839a9e84862f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBKQU1719194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfa01beafedcea28a1545897d8ec96dd4b5c987c96a3056fe4fa6925d76866d. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBKQU1719195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c5c9bb2f668a09bc32f6c8e42e683294035095d494d07a1498d4e754b2991. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1719198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0502f833a2b1456e4de24bd4100a1b6b40b10b3e6101c636cc51b4ad45e28eca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1719199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b068a7a42026aa775e0b6e818433600571960cbc93a6934f1116d77c7dcc9e4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1719200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563885f0303bfb376937834fe132a21f370fa8589357a2f38b5dc7c9c547c63b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU1719201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692d4c4c0a6005d676c2e32f655bd3713804088d7271283e35f4dd89dc1e3842. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1719202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c69d38249c572f85ad9424b2a04b913b177120b31367d9e1082c970ea70c248. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/GBKQU1719203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650a6876854b9c32753c794ecc783ff37fa9b7886d3a4461802fae06d46980ee. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBKQU1405877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca30741892030625f8bf67bc8de140554e036d160fefa759c060da3d51ae3e5. 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/GBKQU1405882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51ae0bfcf73bbf8a245581f1719f465ba51540285f9b9a4885091406001558. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZMHP2024887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f256b2e7ba25ea5d06a7d146518e98f1d99dddd70ed386c44e3f258164a9462. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZKDK2029675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df52ba1352470db2353b39ef8f78ad017eb0a0f30bad804f9cddb6275bd0ac3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZS662209182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadc5866ab122487e34d8ff67aafb2f9db327bc298c295df58d1481a0ea1b79c. 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/QZS632231097.