Pith Number

pith:E5O3IFSS

pith:2013:E5O3IFSSGR4MKVBVG3HER4L34D

not attested not anchored not stored refs pending

The Effects of radial inflow of gas and galactic fountains on the chemical evolution of M31

E. Spitoni, F. Matteucci, M. M. Marcon-Uchida

arxiv:1301.5153 v1 · 2013-01-22 · astro-ph.CO · 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{E5O3IFSSGR4MKVBVG3HER4L34D}

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	2026-05-18T03:31:08.626386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275db416523478c5543536ce48f17be0ceeb2f874be5b4467227ed612f062265

Aliases

arxiv: 1301.5153 · arxiv_version: 1301.5153v1 · doi: 10.48550/arxiv.1301.5153 · pith_short_12: E5O3IFSSGR4M · pith_short_16: E5O3IFSSGR4MKVBV · pith_short_8: E5O3IFSS

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/E5O3IFSSGR4MKVBVG3HER4L34D \
  | 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: 275db416523478c5543536ce48f17be0ceeb2f874be5b4467227ed612f062265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adaef6069dec0b8972da77062060c58603e615bc4a4ff1568c3ecd23a54e042e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-22T11:29:42Z",
    "title_canon_sha256": "eb7b4a40da2dc7e5d0c1b247cef541c8c0d94f87d388bbeb685f9aa8f87b452a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5153",
    "kind": "arxiv",
    "version": 1
  }
}