Pith Number

pith:6XKHMIBY

pith:2009:6XKHMIBYVQVNOK74MAQAGURADO

not attested not anchored not stored refs pending

The ACS Nearby Galaxy Survey Treasury IV. The Star Formation History of NGC 2976

Adrienne Stilp, Andrew Dolphin, Anil C. Seth, Benjamin F. Williams, Daniel Weisz, Evan Skillman, Jon Holtzman, Julianne J. Dalcanton, Karoline M. Gilbert, Rok Roskar, Stephanie M. Gogarten

arxiv:0911.4121 v1 · 2009-11-20 · 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{6XKHMIBYVQVNOK74MAQAGURADO}

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	2026-05-18T02:34:04.234151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5d4762038ac2ad72bfc60200352201b8db43e99bbe0fbc676fb1c8030386fd1

Aliases

arxiv: 0911.4121 · arxiv_version: 0911.4121v1 · doi: 10.48550/arxiv.0911.4121 · pith_short_12: 6XKHMIBYVQVN · pith_short_16: 6XKHMIBYVQVNOK74 · pith_short_8: 6XKHMIBY

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/6XKHMIBYVQVNOK74MAQAGURADO \
  | 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: f5d4762038ac2ad72bfc60200352201b8db43e99bbe0fbc676fb1c8030386fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "388fcb176af3a97fad4c8f8a04191ccace99e18b3234c1b2dde94b58de69ceb5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-20T21:00:14Z",
    "title_canon_sha256": "fa50592ee8d1f7baf21b1e33dadf93118cb1433e11952fb31c94496e5951d66e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4121",
    "kind": "arxiv",
    "version": 1
  }
}