Pith Number

pith:PDU7PB22

pith:2011:PDU7PB22LFBHGSPD4VUAERLECX

not attested not anchored not stored refs pending

Extensibility enables locomotion under isotropic drag

Eric Lauga, On Shun Pak

arxiv:1109.0047 v1 · 2011-08-31 · physics.flu-dyn · cond-mat.soft · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDU7PB22LFBHGSPD4VUAERLECX}

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	2026-05-18T02:00:43.649217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78e9f7875a59427349e3e56802456415dfc6966a5577e62e073a2b9ab8034a20

Aliases

arxiv: 1109.0047 · arxiv_version: 1109.0047v1 · doi: 10.48550/arxiv.1109.0047 · pith_short_12: PDU7PB22LFBH · pith_short_16: PDU7PB22LFBHGSPD · pith_short_8: PDU7PB22

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/PDU7PB22LFBHGSPD4VUAERLECX \
  | 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: 78e9f7875a59427349e3e56802456415dfc6966a5577e62e073a2b9ab8034a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b524e5c1b59a8f5418a0113086d38f25de730bba1c8e80e48aff175d57b40ad2",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2011-08-31T22:26:28Z",
    "title_canon_sha256": "9dcba3f773286e131e026dc05463e5edbb431694a6e3da03ef4d9f1c063a5088"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0047",
    "kind": "arxiv",
    "version": 1
  }
}