Draco is the Greco-Latin word for serpent, or dragon. Draco or Drako most often refers to: Draco (constellation), a constellation in the northern part of the sky Draco (lawgiver) (from Greek: Δράκ
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 0x64651f749519005856626f1fdbe6c242324329614463cd54ef6a87539a413e8d. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/924d9ed2-c396-4d71-8958-cb84ec430369.json and https://artists.proofprofile.net/proofs/artist/924d9ed2-c396-4d71-8958-cb84ec430369.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 0xcfe8157a6325d42e3f0c6267a3deaf4c116c9a5d048e8c711f2173ea5ba12a1b. 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/QM6N22567092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3db5d9be2600d394c444af60ba26b0731903e2cd3efe4ed5ac8d3d1747ae738. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6N22567093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958814f889170f16e3c06abb1cc00b57ded4f05d1d19fb99c90643db3f85ce10. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QM6N22567094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4615d7d795656b27a24daeec2b47c7450e51ecae57e64a4cc63139d30cdfc1. 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/QM6N22567095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3900fbe53925f8d702d7ba71c7654247e0de799b851fcfab14cc82c24377e2f9. 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/QM6N22567096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c4fe1074d3c39089af8eb4f5624ddd36e1b236da20991a6c91978f2e3de334. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM6N22567097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5ca8040909a7e2de70a9c30df6445a8fceeb140b6bc17995a3a5a394f27e5f. 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/QM6N22567098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa475fdf6d58db23fd553b7f84f09008c05b226dc80e703bb871d73f0fd800cb2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QM6N22567099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f54ff31d58ae8426e3d1c6c7fc0ed07f738e0c91b22d551cf78810b85d4239. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6N22567100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8246b0871d302267fcaaaada15387c3f725a8a5841e7601c203902e76029852a. 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/QM6N22567101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89c12bc50f181b90cbce8b2eb48105abb3e9c9f49de8aa111f6b0d7b2a084de. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM6N22567102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf200744efea932b810f26db61336472dde165b8246fbe57a49892be80f8e9169. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QM6N22567103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062760c391357afb096a24497139a2c49103e363db72ec8d22164e45ec024261. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QM6N22567104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b14df21b66f401093bfecb23273ead5548b2223ed054521de15fcfabf39d837. 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/QM6N22567105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38145ec44065842f70b8cbbb26190ad2699a35ffc1d36cc0be29c308c9d00b7. 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/QM6N22567106.