Pith Number

pith:IANGIYNQ

pith:2016:IANGIYNQPAWDA7FFDFIZV7ZGLG

not attested not anchored not stored refs pending

A Tight Relation Between N/O Ratio and Galaxy Stellar Mass Can Explain the Evolution of Strong Emission Line Ratios with Redshift

Andreas Faisst, Daniel Masters, Peter Capak

arxiv:1605.04314 v1 · 2016-05-13 · 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{IANGIYNQPAWDA7FFDFIZV7ZGLG}

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	2026-05-18T01:07:16.484040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401a6461b0782c307ca519519aff2659b8df860204f1e97828c8c2caed57c6e8

Aliases

arxiv: 1605.04314 · arxiv_version: 1605.04314v1 · doi: 10.48550/arxiv.1605.04314 · pith_short_12: IANGIYNQPAWD · pith_short_16: IANGIYNQPAWDA7FF · pith_short_8: IANGIYNQ

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/IANGIYNQPAWDA7FFDFIZV7ZGLG \
  | 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: 401a6461b0782c307ca519519aff2659b8df860204f1e97828c8c2caed57c6e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee82a1a65d477ddef82e151111f865044e6a681a83fa199206904a389d434459",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-13T20:00:04Z",
    "title_canon_sha256": "aa662e0370d9d93347e95a008aa65cdd7689f48cf47f89d4236b4ef2c73b9914"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04314",
    "kind": "arxiv",
    "version": 1
  }
}