Pith Number

pith:MPF5DMWX

pith:2011:MPF5DMWXBAKIFZSH7WZFIKGXVP

not attested not anchored not stored refs pending

How to display science since images have no mass

Florence Marchi, Gail Jones, Hong Z. Tan, Joel Chevrier

arxiv:1103.5432 v1 · 2011-03-28 · 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{MPF5DMWXBAKIFZSH7WZFIKGXVP}

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	2026-05-18T04:25:38.058039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63cbd1b2d7081482e647fdb25428d7abe7bcc8c3f090b9e4b9698f73647882f3

Aliases

arxiv: 1103.5432 · arxiv_version: 1103.5432v1 · doi: 10.48550/arxiv.1103.5432 · pith_short_12: MPF5DMWXBAKI · pith_short_16: MPF5DMWXBAKIFZSH · pith_short_8: MPF5DMWX

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/MPF5DMWXBAKIFZSH7WZFIKGXVP \
  | 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: 63cbd1b2d7081482e647fdb25428d7abe7bcc8c3f090b9e4b9698f73647882f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65c32bdec2fc8ad928744c059bcc2118eb1ef436bc30ed701d175ccc01952537",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-03-28T17:56:12Z",
    "title_canon_sha256": "424f6f4abe75bcedf1c87f8362644fb7c8e2b3b071697922ddc5731396f4358f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5432",
    "kind": "arxiv",
    "version": 1
  }
}