Pith Number

pith:VHJNUVXA

pith:2014:VHJNUVXABQDLDHAU24JA6CIKYZ

not attested not anchored not stored refs pending

Brief, embedded, spontaneous metacognitive talk indicates thinking like a physicist

Eleanor C. Sayre, Paul W. Irving

arxiv:1409.7590 v3 · 2014-09-26 · physics.ed-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{VHJNUVXABQDLDHAU24JA6CIKYZ}

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	2026-05-18T01:31:46.384113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9d2da56e00c06b19c14d7120f090ac66b5388ed7a85c8b9fb7569d6ebdc2598

Aliases

arxiv: 1409.7590 · arxiv_version: 1409.7590v3 · doi: 10.48550/arxiv.1409.7590 · pith_short_12: VHJNUVXABQDL · pith_short_16: VHJNUVXABQDLDHAU · pith_short_8: VHJNUVXA

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/VHJNUVXABQDLDHAU24JA6CIKYZ \
  | 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: a9d2da56e00c06b19c14d7120f090ac66b5388ed7a85c8b9fb7569d6ebdc2598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf33a8bda61234e2af137f45363254f62e150f1c08cd068673ff4d553480c252",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-09-26T14:29:48Z",
    "title_canon_sha256": "8e8f347bdb804dcdbfb3d5a7301cf42e261be205ea63f7feac68ea729cf17eaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7590",
    "kind": "arxiv",
    "version": 3
  }
}