Pith Number

pith:5KOGURQF

pith:2015:5KOGURQFOHLSXNK3RI4CWRW7ZK

not attested not anchored not stored refs pending

Strong variability of the coronal line region in NGC 5548

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

arxiv:1509.05851 v1 · 2015-09-19 · 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{5KOGURQFOHLSXNK3RI4CWRW7ZK}

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	2026-05-18T01:28:45.884832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea9c6a460571d72bb55b8a382b46dfcaa37488957c374c79b3ecfb3be28b9c2a

Aliases

arxiv: 1509.05851 · arxiv_version: 1509.05851v1 · doi: 10.48550/arxiv.1509.05851 · pith_short_12: 5KOGURQFOHLS · pith_short_16: 5KOGURQFOHLSXNK3 · pith_short_8: 5KOGURQF

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/5KOGURQFOHLSXNK3RI4CWRW7ZK \
  | 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: ea9c6a460571d72bb55b8a382b46dfcaa37488957c374c79b3ecfb3be28b9c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ce11c77911b32fece738db95c65a736d21913aeef3be6a9be7b20ecc5f9cee8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-19T06:17:28Z",
    "title_canon_sha256": "a3b2893c788264296efb376445e8e1f83eaa9a4fe9b51fc946e311ebe42d920c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05851",
    "kind": "arxiv",
    "version": 1
  }
}