Pith Number

pith:4QWM2M4A

pith:2004:4QWM2M4AW2DKISHZCEZYGOR43H

not attested not anchored not stored refs pending

Gas flows, star formation and galaxy evolution

2), (2) CSIC, (3) Universidad de Granada, Almudena Zurita (3), Emilio Casuso (1), John E. Beckman (1, Monica Rela\~no (1) ((1) Instituto de Astrofisica de Canarias, Spain, Spain)

arxiv:astro-ph/0405618 v1 · 2004-05-31 · 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{4QWM2M4AW2DKISHZCEZYGOR43H}

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	2026-05-18T01:09:03.280639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e42ccd3380b686a448f91133833a3cd9d0bf0aadd1f740f3b5bc50135ad1ec6c

Aliases

arxiv: astro-ph/0405618 · arxiv_version: astro-ph/0405618v1 · doi: 10.48550/arxiv.astro-ph/0405618 · pith_short_12: 4QWM2M4AW2DK · pith_short_16: 4QWM2M4AW2DKISHZ · pith_short_8: 4QWM2M4A

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/4QWM2M4AW2DKISHZCEZYGOR43H \
  | 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: e42ccd3380b686a448f91133833a3cd9d0bf0aadd1f740f3b5bc50135ad1ec6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03aeadeef41fc577f0f56c51870ca2fe54e5a9859c70b8682e49354e96e4a1b1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-05-31T08:04:43Z",
    "title_canon_sha256": "9dfa9a4d0be08bcdb83c0a7190e597a1b5c6d5471dd5f7003cc0bb2a8a272699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0405618",
    "kind": "arxiv",
    "version": 1
  }
}