Pith Number

pith:4KKGLT4P

pith:2010:4KKGLT4PGMNPBC4YG6TZYD5UMA

not attested not anchored not stored refs pending

Surface Brightness Fluctuations in the Hubble Space Telescope ACS/WFC F814W Bandpass and an Update on Galaxy Distances

Andres Jordan, Eric W. Peng, Guy Worthey, John L. Tonry, John P. Blakeslee, Laura Ferrarese, Michele Cantiello, Patrick Cote, Regina Barber DeGraaff, Simona Mei

arxiv:1009.3270 v2 · 2010-09-16 · 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{4KKGLT4PGMNPBC4YG6TZYD5UMA}

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	2026-05-18T04:05:15.132926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e29465cf8f331af08b9837a79c0fb46009bb38fbeb654420ef31ccbc9ed49744

Aliases

arxiv: 1009.3270 · arxiv_version: 1009.3270v2 · doi: 10.48550/arxiv.1009.3270 · pith_short_12: 4KKGLT4PGMNP · pith_short_16: 4KKGLT4PGMNPBC4Y · pith_short_8: 4KKGLT4P

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/4KKGLT4PGMNPBC4YG6TZYD5UMA \
  | 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: e29465cf8f331af08b9837a79c0fb46009bb38fbeb654420ef31ccbc9ed49744

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43a38ea38a105279db0146fb99d993d61976e1b7f96f260d3c3af63ae2ee39ec",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-16T20:00:23Z",
    "title_canon_sha256": "987dcdac020b3a24755b431ffd71222afa28cb3f5f2f30fabf4e85aba8b3d61b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3270",
    "kind": "arxiv",
    "version": 2
  }
}