Pith Number

pith:X3HAKGZZ

pith:2015:X3HAKGZZA552HEFEGWCYC6URK7

not attested not anchored not stored refs pending

Variability of the coronal line region in NGC 4151

(2) Universidad Catolica del Norte, 3), (3) University of Oxford, (4) Queen's University of Belfast, 5) ((1) Durham University, (5) University of Kentucky), Antofagasta, Gary J. Ferland (4, Hermine Landt (1), Katrien C. Steenbrugge (2, Martin J. Ward (1)

arxiv:1501.02928 v1 · 2015-01-13 · 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{X3HAKGZZA552HEFEGWCYC6URK7}

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	2026-05-18T01:41:11.390050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bece051b39077ba390a43585817a9157efa78926083e1b52ffa56341f372050e

Aliases

arxiv: 1501.02928 · arxiv_version: 1501.02928v1 · doi: 10.48550/arxiv.1501.02928 · pith_short_12: X3HAKGZZA552 · pith_short_16: X3HAKGZZA552HEFE · pith_short_8: X3HAKGZZ

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/X3HAKGZZA552HEFEGWCYC6URK7 \
  | 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: bece051b39077ba390a43585817a9157efa78926083e1b52ffa56341f372050e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55afe408c842ff2ca154477bd1efeb28899d821e632057fcd9990a31771ab486",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-13T09:34:25Z",
    "title_canon_sha256": "8e2a687e2a124e4423a90e271c5780a9e1617736ead963ed840077dd52ea7bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02928",
    "kind": "arxiv",
    "version": 1
  }
}