Pith Number

pith:REZ2TDTX

pith:2008:REZ2TDTXSYV7WWHZEPLH2ZDVVK

not attested not anchored not stored refs pending

Learning about the Recent Star Formation History of Galaxy Disks by Comparing their Far-Infrared and Radio Morphologies: Cosmic-Ray Electron Diffusion after Star Formation Episodes

E.J. Murphy, G. Helou, J.D.P. Kenney, L. Armus, R. Braun

arxiv:0802.2279 v1 · 2008-02-15 · 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{REZ2TDTXSYV7WWHZEPLH2ZDVVK}

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	2026-07-04T15:09:36.066133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8933a98e77962bfb58f923d67d6475aa89b88c1ffda1b7426ac2a1d0538ab6ab

Aliases

arxiv: 0802.2279 · arxiv_version: 0802.2279v1 · doi: 10.48550/arxiv.0802.2279 · pith_short_12: REZ2TDTXSYV7 · pith_short_16: REZ2TDTXSYV7WWHZ · pith_short_8: REZ2TDTX

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/REZ2TDTXSYV7WWHZEPLH2ZDVVK \
  | 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: 8933a98e77962bfb58f923d67d6475aa89b88c1ffda1b7426ac2a1d0538ab6ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c5ddc95e0312c5536457616b3a84835f110675cedda35e20a2d7b02e684ad77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-15T21:00:09Z",
    "title_canon_sha256": "bbc91a68405d40c10390216b0a1482af527a22e73b9670e185380a241072ef3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2279",
    "kind": "arxiv",
    "version": 1
  }
}