Davus, also known as the tiger rump tarantulas, is a genus of spiders in the family Theraphosidae (tarantulas). It was formerly included in Cyclosternum. They are medium to large tarantulas, found in
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 0xe939bcee7e02cbeacc6928271fc811727abab5b2746923e1d965c06abee90745. 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/cc43069a-bf01-4bca-8bfc-4aa45439ddae.json and https://artists.proofprofile.net/proofs/artist/cc43069a-bf01-4bca-8bfc-4aa45439ddae.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 0xd8c1bafe673fbfb8958b012dac0809a19fdcba0f0b39dc3735fdc99c8d588855. 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/UYD802300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d0789d65b0b1c0f3462095a1843faf7db08cbe516312f9d9d532b927f67d47. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX282330659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d29e019c15ff0c380f1e06c559c5de3b2ceabe3c85bc8db53d0de13bf474e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S2351535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725d2e73208c5d19adc8c465a29d7ecb0b9588dec64458d49f5751194d707ba6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHZ51948876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0b07ce771ae82a68e181df6b540a33c48f9d9e4a1d75f9804996df7a80a226. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZFYZ2026971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd8ee85ccea3cb9414b8ee53db92718fe53a891315efda1ae78e6afd3b144fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UYD802400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18308b47f87389c0d325c02a7de88bfe93ef51738df0e79e85a3ac119b102a5c. 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/UYD802400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ef91fc39c6ca24d364113681f482bb2061d3a50c2700103ffa45efdece8c3a. 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/UYD802400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25999681221d4084f5df0f0af68d97b61386187dcdb81ce8f86f9175ae9470d. 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/QZTV32406959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370fa2be1dfb67ce86cda374f427b62b16deb239ff7d647e22979babc94e27c0. 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/UYD802300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e7523057895d2b0ccf394410e98efdb598243120b39754cb480e19fe91213d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UYD802300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933eaceed927e159676a512c0dee2ce870add3ea6efa332319cbedfba447af0e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UYD802300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63821df403c7eba78e2b267978045b9034758b0be5ef33013c8e8173eb026698. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UYD802300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0353f88bf2b02813e161b4c7ec9d16b2d5dfd5b903e2f0947b19c3603171f408. 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/UYD802300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c95feb24caf0ceae806a73270f5fb5f15f2fc180df72ee6d463fededac1d02. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UYD802300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dccdcf52245a460e9a7f9cb00a5b56ff966ac2c333ec868558730dca5b2303. 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/UYD802300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6eddbda5209c1e8e1624894a16c353e79583ded32fa43ea7b1a124a6eb3a9a3. 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/TCAFJ2194475.
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 0x7534732b3bf10156c4b71de7f0edc3c57f6a86bd08439740a0d54e92a1ca1af9. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US3DF2454469.