Pith Number

pith:YRVSUJPK

pith:2012:YRVSUJPKAAM4OSHJ7NN54CXQEH

not attested not anchored not stored refs pending

The Effect of Star Formation on the Redshift Evolution of Interstellar Metals, Atomic and Molecular Gas in Galaxies

Cheng Li, Guinevere Kauffmann, Jian Fu, Qi Guo

arxiv:1203.5280 v2 · 2012-03-23 · astro-ph.GA · 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{YRVSUJPKAAM4OSHJ7NN54CXQEH}

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	2026-05-18T01:58:03.923777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c46b2a25ea0019c748e9fb5bde0af021d323b7aca49399751af237944d53727c

Aliases

arxiv: 1203.5280 · arxiv_version: 1203.5280v2 · doi: 10.48550/arxiv.1203.5280 · pith_short_12: YRVSUJPKAAM4 · pith_short_16: YRVSUJPKAAM4OSHJ · pith_short_8: YRVSUJPK

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/YRVSUJPKAAM4OSHJ7NN54CXQEH \
  | 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: c46b2a25ea0019c748e9fb5bde0af021d323b7aca49399751af237944d53727c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2058431967eff310719c3edf7c4361709416891ea980b2714304d20e3a483d39",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-03-23T16:15:04Z",
    "title_canon_sha256": "16e2873ff5033a26ca169980818e6d62680305c142794374bb51c53bf7955cab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5280",
    "kind": "arxiv",
    "version": 2
  }
}