Pith Number

pith:J4P4SGF2

pith:1997:J4P4SGF2HUTBHZRKA74TA2TED5

not attested not anchored not stored refs pending

Indicators of star formation: 4000 Angstrom break and Balmer lines

B.M. Poggianti (Institute of Astronomy, Cambridge), G.Barbaro (Dipartimento di Astronomia, Padova), Royal Greenwich Observatory

arxiv:astro-ph/9703067 v1 · 1997-03-11 · 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{J4P4SGF2HUTBHZRKA74TA2TED5}

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.

Cited by

3 papers in Pith

Inside-Out vs. Outside-In Quenching of MaNGA Galaxies: Dependence on Stellar Mass and Environment

Towards Unbreaking the Universe: MINERVA Measurements of Color Gradients in Massive Quiescent Galaxies Can Help Ease Too-Early Star Formation Tensions

First Light And Reionization Epoch Simulations (FLARES) XXI: The UV Indices of Galaxies in the Early Universe

Receipt and verification

First computed	2026-07-04T14:15:04.749609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f1fc918ba3d2613e62a07f9306a641f52bfac11f3faece96393301a18df06fa

Aliases

arxiv: astro-ph/9703067 · arxiv_version: astro-ph/9703067v1 · doi: 10.48550/arxiv.astro-ph/9703067 · pith_short_12: J4P4SGF2HUTB · pith_short_16: J4P4SGF2HUTBHZRK · pith_short_8: J4P4SGF2

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/J4P4SGF2HUTBHZRKA74TA2TED5 \
  | 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: 4f1fc918ba3d2613e62a07f9306a641f52bfac11f3faece96393301a18df06fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d304727db3b6f6a1985deb0b7012f712109245c27083b8626f3ccdb2596f9d53",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-03-11T10:29:46Z",
    "title_canon_sha256": "7dd940e04b289b2f6f9979cfed145c260493360b530258b9043286fea7e487ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9703067",
    "kind": "arxiv",
    "version": 1
  }
}