Pith Number

pith:HOAHSSSF

pith:2009:HOAHSSSFD2ZZO5A7JOR27DORMO

not attested not anchored not stored refs pending

Young Stellar Populations in the Collisional Ring Galaxy NGC 922

(2) Johns Hopkins University, (3) University of New South Wales, (4) Vassar College, (5) Yale University, (6) WIYN), Anne Pellerin (1), Debra M. Elmegreen (4), Gerhardt R. Meurer (2), Kenji Bekki (3), O. Ivy. Wong (5), Patricia Knezek (6) ((1) Texas A&M University

arxiv:0910.0028 v1 · 2009-09-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HOAHSSSFD2ZZO5A7JOR27DORMO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:11:35.653635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b80794a451eb397741f4ba3af8dd1639fa58ebaaca0088e42679d680537b334

Aliases

arxiv: 0910.0028 · arxiv_version: 0910.0028v1 · doi: 10.48550/arxiv.0910.0028 · pith_short_12: HOAHSSSFD2ZZ · pith_short_16: HOAHSSSFD2ZZO5A7 · pith_short_8: HOAHSSSF

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/HOAHSSSFD2ZZO5A7JOR27DORMO \
  | 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: 3b80794a451eb397741f4ba3af8dd1639fa58ebaaca0088e42679d680537b334

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019b73022af19ee6e8c225a8fd21c31220fca99cbd36ec221595d9101bad97d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-30T20:41:17Z",
    "title_canon_sha256": "606d05ae436cff0dc9ae386b4281cd84f43c9c9014ad8bd051617d469a3fede7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0028",
    "kind": "arxiv",
    "version": 1
  }
}