Pith Number

pith:7TUVII4B

pith:2012:7TUVII4BKMUCLGYO64VA347IFB

not attested not anchored not stored refs pending

EI Videos

Amy Courtney, Michael Courtney, Tom Slusher

arxiv:1204.2462 v1 · 2012-04-11 · 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{7TUVII4BKMUCLGYO64VA347IFB}

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	2026-05-18T03:58:05.284340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce95423815328259b0ef72a0df3e8287e4d84e801e9c654a9c7c1a9700d6424

Aliases

arxiv: 1204.2462 · arxiv_version: 1204.2462v1 · doi: 10.48550/arxiv.1204.2462 · pith_short_12: 7TUVII4BKMUC · pith_short_16: 7TUVII4BKMUCLGYO · pith_short_8: 7TUVII4B

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/7TUVII4BKMUCLGYO64VA347IFB \
  | 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: fce95423815328259b0ef72a0df3e8287e4d84e801e9c654a9c7c1a9700d6424

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6c1ec8f2469c8852962ce85259ac8e82d8a2dfb88fb74c7abdf223d5555966a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-04-11T14:37:30Z",
    "title_canon_sha256": "abf0c347dbe2e2736cf346dd6b7d3ede3eed669d5bf9ef3b673a6b86bb1ec5df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2462",
    "kind": "arxiv",
    "version": 1
  }
}