Pith Number

pith:HGYSVLQC

pith:2017:HGYSVLQCGO2CZXJA2XMAS7KVEM

not attested not anchored not stored refs pending

Propulsion via flexible flapping in granular media

Gwynn J. Elfring, Kyle Pietrzyk, On Shun Pak, Yang Ding, Zhiwei Peng

arxiv:1703.08624 v1 · 2017-03-24 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGYSVLQCGO2CZXJA2XMAS7KVEM}

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	2026-05-18T00:38:46.101566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b12aae0233b42cdd20d5d8097d55233befb91b9010fef6bb80516cadbe4b37

Aliases

arxiv: 1703.08624 · arxiv_version: 1703.08624v1 · doi: 10.48550/arxiv.1703.08624 · pith_short_12: HGYSVLQCGO2C · pith_short_16: HGYSVLQCGO2CZXJA · pith_short_8: HGYSVLQC

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/HGYSVLQCGO2CZXJA2XMAS7KVEM \
  | 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: 39b12aae0233b42cdd20d5d8097d55233befb91b9010fef6bb80516cadbe4b37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b344ee030a7e303bb32783c0c6c6fef013cb0f0bec888bdf5e9b19318162e84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2017-03-24T23:30:46Z",
    "title_canon_sha256": "9a6fa269e1822aea72013a757eb0c69f5294dbfdcecc90b609de0625395cd2a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08624",
    "kind": "arxiv",
    "version": 1
  }
}