Pith Number

pith:3EWIVSY4

pith:2009:3EWIVSY4XK2AHXEDJOQVFGIJGX

not attested not anchored not stored refs pending

The ACS Fornax Cluster Survey. V. Measurement and Recalibration of Surface Brightness Fluctuations and a Precise Value of the Fornax--Virgo Relative Distance

Andres Jordan, Eric W. Peng, John L. Tonry, John P. Blakeslee, Laura Ferrarese, Leopoldo Infante, Michael J. West, Patrick Cote, Simona Mei

arxiv:0901.1138 v1 · 2009-01-08 · 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{3EWIVSY4XK2AHXEDJOQVFGIJGX}

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	2026-05-18T04:29:24.031441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d92c8acb1cbab403dc834ba152990935f510c1157c2afb1c89b3b0472b02a8b8

Aliases

arxiv: 0901.1138 · arxiv_version: 0901.1138v1 · doi: 10.48550/arxiv.0901.1138 · pith_short_12: 3EWIVSY4XK2A · pith_short_16: 3EWIVSY4XK2AHXED · pith_short_8: 3EWIVSY4

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/3EWIVSY4XK2AHXEDJOQVFGIJGX \
  | 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: d92c8acb1cbab403dc834ba152990935f510c1157c2afb1c89b3b0472b02a8b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "852ac1f6e77a92250d0fd49c5ce91480a0452697102c130216f19d9d6330d5a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-08T21:20:40Z",
    "title_canon_sha256": "3c644ef91bbea23ce820386292657dc46fa5dc1184a70c453ebac54fe33c4887"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1138",
    "kind": "arxiv",
    "version": 1
  }
}