Pith Number

pith:YDJVIQRI

pith:2009:YDJVIQRIOOOKEKU6LKLQZUANSL

not attested not anchored not stored refs pending

Chemical Abundances of Seven Irregular and Three Tidal Dwarf Galaxies in the M81 Group

Bryan W. Miller, Evan D. Skillman, Henry Lee, Janice C. Lee, Kevin V. Croxall, Liese van Zee, Robert C. Kennicutt Jr, St\'ephanie C\^ot\'e

arxiv:0910.3162 v2 · 2009-10-16 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDJVIQRIOOOKEKU6LKLQZUANSL}

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	2026-05-18T02:34:18.560787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0d3544228739ca22a9e5a970cd00d92d0e3ae35aef9016a5397e6c38b5b2aea

Aliases

arxiv: 0910.3162 · arxiv_version: 0910.3162v2 · doi: 10.48550/arxiv.0910.3162 · pith_short_12: YDJVIQRIOOOK · pith_short_16: YDJVIQRIOOOKEKU6 · pith_short_8: YDJVIQRI

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/YDJVIQRIOOOKEKU6LKLQZUANSL \
  | 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: c0d3544228739ca22a9e5a970cd00d92d0e3ae35aef9016a5397e6c38b5b2aea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33dd891e75ea411beef4623bf0867458c32fb752acca0b07e718d78c649fcc3c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-10-16T17:12:09Z",
    "title_canon_sha256": "cadd5c806f01401f2cfc93ec5acca806c2b98119848c98d4ffee9d8214517f75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3162",
    "kind": "arxiv",
    "version": 2
  }
}