Pith Number

pith:DSXJIR6J

pith:2009:DSXJIR6JI7QWVEQFQCXQIYNHEW

not attested not anchored not stored refs pending

A Photometric Metallicity Estimate of the Virgo Stellar Overdensity

Brian Yanny, Deokkeun An, Donald M. Terndrup, Franck Delahaye, Jennifer A. Johnson, Marc H. Pinsonneault, Thomas Masseron, Timothy C. Beers, Young Sun Lee

arxiv:0907.1082 v2 · 2009-07-06 · 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{DSXJIR6JI7QWVEQFQCXQIYNHEW}

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	2026-07-04T17:17:00.837495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cae9447c947e16a920580af0461a725b4d318cad5e3333f203ba8e16cd11cf3

Aliases

arxiv: 0907.1082 · arxiv_version: 0907.1082v2 · doi: 10.48550/arxiv.0907.1082 · pith_short_12: DSXJIR6JI7QW · pith_short_16: DSXJIR6JI7QWVEQF · pith_short_8: DSXJIR6J

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/DSXJIR6JI7QWVEQFQCXQIYNHEW \
  | 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: 1cae9447c947e16a920580af0461a725b4d318cad5e3333f203ba8e16cd11cf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7bf2b3f2926c740d23ecc2c5dc0c9bde85b1459c52489221801e7c50473644a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-07-06T20:00:05Z",
    "title_canon_sha256": "64b633bc6afd312b88c4c45be0805dd88a8509e37b1ab09b4463866efcadc6fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1082",
    "kind": "arxiv",
    "version": 2
  }
}