Pith Number

pith:K2XEHPXF

pith:2002:K2XEHPXF4NGGVBYTRIDOZ57XW4

not attested not anchored not stored refs pending

Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey

Anniruddha Thakar, Christy Tremonti, David Weinberg, Don York, Eric W. Peng, Francisco Castander, Guinevere Kauffmann, Gustavo Bruzual, Istvan Csabai, Jarle Brinchmann, Jeffrey Munn, Jon Brinkmann, Mariangela Bernardi, Mark Seibert, Masataka Fukugita, Michael Blanton, Nikhil Padmanabhan, Robert Nichol, Simon D.M. White, Stephane Charlot, Timothy M. Heckman, Zeljko Ivezic

arxiv:astro-ph/0204055 v2 · 2002-04-03 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K2XEHPXF4NGGVBYTRIDOZ57XW4}

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	2026-07-04T15:20:08.668622Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56ae43bee5e34c6a87138a06ecf7f7b70efc6bda2e5a4987e994b7bf47fa0814

Aliases

arxiv: astro-ph/0204055 · arxiv_version: astro-ph/0204055v2 · doi: 10.48550/arxiv.astro-ph/0204055 · pith_short_12: K2XEHPXF4NGG · pith_short_16: K2XEHPXF4NGGVBYT · pith_short_8: K2XEHPXF

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/K2XEHPXF4NGGVBYTRIDOZ57XW4 \
  | 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: 56ae43bee5e34c6a87138a06ecf7f7b70efc6bda2e5a4987e994b7bf47fa0814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33eb1240f02aa5aaa2c72332a6c411445fc137b8c273addcb623795bebf3ca6b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-04-03T12:03:44Z",
    "title_canon_sha256": "9a1fc1db929d330284fc1372b82c9aae50dfa8a62ad3aa5cff13498b6659470f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0204055",
    "kind": "arxiv",
    "version": 2
  }
}