Pith Number

pith:3DAPNASG

pith:2012:3DAPNASGU6W36YDTBZJBH5BMQH

not attested not anchored not stored refs pending

Evolution in the Dust Lane Fraction of Edge-on L* Spiral Galaxies since z=0.8

A. Koekemoer (STScI), B.W. Holwerda (ESA), D. Radburn-Smith (university of Washington), J. J. Dalcanton (University of Washington), P. Guhathakurta (Santa Cruz), R. J. Allen (STSCI), R. S. de Jong (AIP), T. B\"oker (ESA)

arxiv:1204.2940 v1 · 2012-04-13 · 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{3DAPNASGU6W36YDTBZJBH5BMQH}

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	2026-05-18T01:57:52.796722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8c0f68246a7adbf60730e5213f42c81f3903512b192ca84ecef611105267afc

Aliases

arxiv: 1204.2940 · arxiv_version: 1204.2940v1 · doi: 10.48550/arxiv.1204.2940 · pith_short_12: 3DAPNASGU6W3 · pith_short_16: 3DAPNASGU6W36YDT · pith_short_8: 3DAPNASG

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/3DAPNASGU6W36YDTBZJBH5BMQH \
  | 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: d8c0f68246a7adbf60730e5213f42c81f3903512b192ca84ecef611105267afc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b7746a52a6cd79510a350e335eaf1a39fcd3bc4cde19aa356f3adafa60dc9d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-13T10:14:24Z",
    "title_canon_sha256": "1c478e7f7a8ad3beaf84f982a810b6f979bb730fd0012cfec4673b799e4fc6c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2940",
    "kind": "arxiv",
    "version": 1
  }
}