Diplodocus (, , or ) is an extinct genus of diplodocid sauropod dinosaurs known from the Late Jurassic of North America. The first fossils of Diplodocus were discovered in 1877 by S. W. Williston. The
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01d0ca718757bffd2bb4d00a1e286064eb37f62e7d1f02efd34ac58a5d576ae. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49f1ce26-9e30-47f2-a3e3-06c42bc3d089.json and https://artists.proofprofile.net/proofs/artist/49f1ce26-9e30-47f2-a3e3-06c42bc3d089.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d3ed99f2c600a0fdf324e698089e5793b3ebf4e3b1c5c15c9a83029e3b7d2b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZK6Q1913751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0da37498d68ead7ab7ec32cb6b4042f4c460d6f01e4710d99bf5af8e0035bd7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZK6Q1913752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e84b5f8255f42d54b2609f52ae4a9feae35b95f4b28fa50a2c1e015c5931dd3. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZK6Q1913753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5770c386fb0fdbb6e913c54fbee5c6974a0640a6a07887dc4f18e9be14e970. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:27Z), 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/QZK6Q1913754.
Faint Burning Glimmer in the Mesozoic Sky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353c240e7b83eae5a8210b2c2328c2e19262ed7312986e9577c897a0540b341c. 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/QZK6Q1913755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d32f598d1c26c108fad144bf9e098dd83f82e6cfb150a3bb010ede4673c2850. 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/QZK6Q1913756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf563ae8a14e7b616f9de57ae784c6fa5eb8a2b74e1f364e785a97586ba5c60f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZK6Q1913758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278092a9474673267b99338c41c45fe26539555b4576409808fe260884b1985a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6Q1913759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1259f5411aef6d5ccdd8595adde212a3df9df710415bdfde7e20627142dd442b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZMEM2003943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e076cf59e31a6e482541fe348c68b31e1872f41f2d5de0c83df901970261df. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZWFV2567581.