Pith Number

pith:JFJJKCSW

pith:2011:JFJJKCSWPOLGQGBJHJB7PQPIFA

not attested not anchored not stored refs pending

Atomic Hydrogen produced in M33 Photodissociation Regions

J. S. Heiner, P. C. van der Kruit, R. J. Allen

arxiv:1102.4872 v1 · 2011-02-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFJJKCSWPOLGQGBJHJB7PQPIFA}

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	2026-05-18T02:03:05.744004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4952950a567b966818293a43f7c1e8283bccb406359eafe27098c7a6c6b31e18

Aliases

arxiv: 1102.4872 · arxiv_version: 1102.4872v1 · doi: 10.48550/arxiv.1102.4872 · pith_short_12: JFJJKCSWPOLG · pith_short_16: JFJJKCSWPOLGQGBJ · pith_short_8: JFJJKCSW

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/JFJJKCSWPOLGQGBJHJB7PQPIFA \
  | 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: 4952950a567b966818293a43f7c1e8283bccb406359eafe27098c7a6c6b31e18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "736d8c228b97868bf81cf51794f55644d05fd9fc30c58f511a829e379bd6e014",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-23T23:11:13Z",
    "title_canon_sha256": "bafefe4747f4ef5286ee8189fe0db22ba2529bc5427b10a47f6081c27d393155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4872",
    "kind": "arxiv",
    "version": 1
  }
}