Pith Number

pith:OCQFFAP3

pith:2022:OCQFFAP3675HWVM2DN36HJTHO3

not attested not anchored not stored refs pending

How ornithopters can perch autonomously on a branch

2), (2) EPFL, Anibal Ollero (1) ((1) GRVC Robotics Lab, Daniel Feliu Talegon (1), Jesus Tormo Barbero (1), Jose Angel Acosta (1), Raphael Zufferey (1, Saeed Rafee Nekoo (1), Seville, Spain, Switzerland)

arxiv:2207.07489 v1 · 2022-07-15 · cs.RO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OCQFFAP3675HWVM2DN36HJTHO3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:24:39.182402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70a05281fbf7fa7b559a1b77e3a66776f89ea4eabf546b1c15bebd37c0639bb2

Aliases

arxiv: 2207.07489 · arxiv_version: 2207.07489v1 · doi: 10.48550/arxiv.2207.07489 · pith_short_12: OCQFFAP3675H · pith_short_16: OCQFFAP3675HWVM2 · pith_short_8: OCQFFAP3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OCQFFAP3675HWVM2DN36HJTHO3 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 70a05281fbf7fa7b559a1b77e3a66776f89ea4eabf546b1c15bebd37c0639bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bcabe96f8bd35a3f2c2e33f7083569c884378c2591fa10868cac81ba7cc76bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2022-07-15T14:12:39Z",
    "title_canon_sha256": "6e18aa79e53cbb18a356e198776466d0d7d67ed7ed493a7bef0c64684b2575ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.07489",
    "kind": "arxiv",
    "version": 1
  }
}