Pith Number

pith:MDGXFSTC

pith:2015:MDGXFSTCFGE5PTQRFTOKHYIJ4U

not attested not anchored not stored refs pending

Probability distribution functions of gas in M31 and M51

Andrew Fletcher, Elly M. Berkhuijsen

arxiv:1501.07769 v1 · 2015-01-30 · 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{MDGXFSTCFGE5PTQRFTOKHYIJ4U}

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	2026-05-18T01:41:05.660907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60cd72ca622989d7ce112cdca3e109e53e60017da35584e80678df5de5631dfd

Aliases

arxiv: 1501.07769 · arxiv_version: 1501.07769v1 · doi: 10.48550/arxiv.1501.07769 · pith_short_12: MDGXFSTCFGE5 · pith_short_16: MDGXFSTCFGE5PTQR · pith_short_8: MDGXFSTC

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/MDGXFSTCFGE5PTQRFTOKHYIJ4U \
  | 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: 60cd72ca622989d7ce112cdca3e109e53e60017da35584e80678df5de5631dfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a21cd84aa25adf91e63af8368c6c23da8c77d71f269d8f6faf3216a145139aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-30T13:40:16Z",
    "title_canon_sha256": "98fdae88f583149e02d163fc61147bf989294a7f8396332fa82324895d0f0155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07769",
    "kind": "arxiv",
    "version": 1
  }
}