Pith Number

pith:7O7XQ3HV

pith:2014:7O7XQ3HV7TIP3PMLY4TL7433VD

not attested not anchored not stored refs pending

Aperture Effects on Spectroscopic Galaxy Activity Classification

A. Maragkoudakis, A. Zezas, M. L. N. Ashby, S. P. Willner

arxiv:1404.0620 v1 · 2014-04-02 · 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{7O7XQ3HV7TIP3PMLY4TL7433VD}

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	2026-05-18T01:43:42.924034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbbf786cf5fcd0fdbd8bc726bff37ba8e9c3dcfb7fe3d90ebe71a4997a819bec

Aliases

arxiv: 1404.0620 · arxiv_version: 1404.0620v1 · doi: 10.48550/arxiv.1404.0620 · pith_short_12: 7O7XQ3HV7TIP · pith_short_16: 7O7XQ3HV7TIP3PML · pith_short_8: 7O7XQ3HV

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/7O7XQ3HV7TIP3PMLY4TL7433VD \
  | 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: fbbf786cf5fcd0fdbd8bc726bff37ba8e9c3dcfb7fe3d90ebe71a4997a819bec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7707642ce6eb2a7123f7e75401d49787312a87cce3ef434c22e934d2cde0487",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-04-02T17:15:08Z",
    "title_canon_sha256": "4b3a56bda68d646cf8e70697c13a62eb532814a4de4365a7020e581e7d8504e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0620",
    "kind": "arxiv",
    "version": 1
  }
}