Pith Number

pith:RSPX4RAO

pith:2013:RSPX4RAOMXZPZK3FE54FTOGTEM

not attested not anchored not stored refs pending

The Chemical Evolution of Star-Forming Galaxies Over the Last 11 Billion Years

Daniel Fabricant (SAO), H. Jabran Zahid (IfA, Ho Seong Hwang (SAO), Lisa Kewley (ANU), Margaret Geller (SAO), Michael Kurtz (SAO), University of Hawaii)

arxiv:1303.5987 v2 · 2013-03-24 · 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{RSPX4RAOMXZPZK3FE54FTOGTEM}

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	2026-05-18T01:50:59.211224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c9f7e440e65f2fcab65277859b8d3232d4c03e443f32bf395a314f28df9a780

Aliases

arxiv: 1303.5987 · arxiv_version: 1303.5987v2 · doi: 10.48550/arxiv.1303.5987 · pith_short_12: RSPX4RAOMXZP · pith_short_16: RSPX4RAOMXZPZK3F · pith_short_8: RSPX4RAO

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/RSPX4RAOMXZPZK3FE54FTOGTEM \
  | 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: 8c9f7e440e65f2fcab65277859b8d3232d4c03e443f32bf395a314f28df9a780

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30c2b0be29cc63a76d53ae2d58905361de276554b574f7b7ed518b51f24acd2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-24T20:04:32Z",
    "title_canon_sha256": "dba54738fd539fe6f8e140ecbec7ec8ca7eb517f2d18d00188be16dbb2808729"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5987",
    "kind": "arxiv",
    "version": 2
  }
}