Pith Number

pith:7IEUG2ON

pith:2013:7IEUG2ON4YPUFT6CHCZTFX3MLZ

not attested not anchored not stored refs pending

Stellar Populations in the Central 0.5 pc of the Galaxy I: A New Method for Constructing Luminosity Functions and Surface-Density Profiles

Andrea M. Ghez, Gregory D. Martinez, Jessica R. Lu, Keith Matthews, Mark R. Morris, Shelley A. Wright, Sylvana Yelda, Tuan Do

arxiv:1301.0539 v1 · 2013-01-03 · astro-ph.SR · 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{7IEUG2ON4YPUFT6CHCZTFX3MLZ}

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	2026-05-18T01:52:21.786374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa094369cde61f42cfc238b332df6c5e523d8b7812e768ad2373d641c7445262

Aliases

arxiv: 1301.0539 · arxiv_version: 1301.0539v1 · doi: 10.48550/arxiv.1301.0539 · pith_short_12: 7IEUG2ON4YPU · pith_short_16: 7IEUG2ON4YPUFT6C · pith_short_8: 7IEUG2ON

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/7IEUG2ON4YPUFT6CHCZTFX3MLZ \
  | 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: fa094369cde61f42cfc238b332df6c5e523d8b7812e768ad2373d641c7445262

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aad195b44540b07d3f142da658b1c36fef0d7c555f54f65be38c2087acd7e98",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-03T20:15:13Z",
    "title_canon_sha256": "17415cd4e798a15749b69630ae215abb2165054ce6470e86ab10b629066fed08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0539",
    "kind": "arxiv",
    "version": 1
  }
}