Pith Number

pith:A3VFMY2J

pith:2013:A3VFMY2J6MIFL4GWUAFO2BQ3HU

not attested not anchored not stored refs pending

Radial Forcing and Edgar Allan Poe's Lengthening Pendulum

David Blasing, Heather M. Whitney, Matthew McMillan

arxiv:1309.2907 v1 · 2013-08-26 · physics.class-ph · physics.ed-ph · physics.pop-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{A3VFMY2J6MIFL4GWUAFO2BQ3HU}

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	2026-05-18T03:13:34.561363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06ea566349f31055f0d6a00aed061b3d0111aff0f8bc9d084b9722d0c99c718d

Aliases

arxiv: 1309.2907 · arxiv_version: 1309.2907v1 · doi: 10.48550/arxiv.1309.2907 · pith_short_12: A3VFMY2J6MIF · pith_short_16: A3VFMY2J6MIFL4GW · pith_short_8: A3VFMY2J

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/A3VFMY2J6MIFL4GWUAFO2BQ3HU \
  | 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: 06ea566349f31055f0d6a00aed061b3d0111aff0f8bc9d084b9722d0c99c718d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abc32d255b45b734ae9565d04beee0b7613e31eda427ade47c5968bbb392a7bf",
    "cross_cats_sorted": [
      "physics.ed-ph",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2013-08-26T15:25:16Z",
    "title_canon_sha256": "b0b53d4f6c3197db57317bbc6d402d7836eb4755934cd9e5265507dabdf9d08b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2907",
    "kind": "arxiv",
    "version": 1
  }
}