Pith Number

pith:6W4GHIRQ

pith:2016:6W4GHIRQYX5L7WEGRASKBYIRN3

not attested not anchored not stored refs pending

Observational evidence for the evolution of nuclear metallicity and star formation rate as the merger stage

Cai-Na Hao, Peng Wei, Rui Guo, Xiao-Yang Xia, Xin Guo

arxiv:1603.04988 v1 · 2016-03-16 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6W4GHIRQYX5L7WEGRASKBYIRN3}

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	2026-05-18T01:12:16.694131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5b863a230c5fabfd8868824a0e1116ec49070a008679b547ed6c91e9b9f7850

Aliases

arxiv: 1603.04988 · arxiv_version: 1603.04988v1 · doi: 10.48550/arxiv.1603.04988 · pith_short_12: 6W4GHIRQYX5L · pith_short_16: 6W4GHIRQYX5L7WEG · pith_short_8: 6W4GHIRQ

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/6W4GHIRQYX5L7WEGRASKBYIRN3 \
  | 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: f5b863a230c5fabfd8868824a0e1116ec49070a008679b547ed6c91e9b9f7850

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "241e17b44fed276b91146775e68ab6d6604a0261864443c5ca97216dc77a595f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-16T08:21:40Z",
    "title_canon_sha256": "9acbf2f610952502112c1809b57ca99ea8a8d477a08c0af963bafddf1c845fa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04988",
    "kind": "arxiv",
    "version": 1
  }
}