Pith Number

pith:EPRP5LDX

pith:2013:EPRP5LDXYXHJQEHECPIHGCSVHB

not attested not anchored not stored refs pending

A Census of X-ray gas in NGC 1068: Results from 450ks of Chandra HETG Observation

A. Longinotti, C. Canizares, D. A. Evans, H. Marshall, M. Nowak, N. Schulz, T. Kallman

arxiv:1311.1222 v2 · 2013-11-05 · astro-ph.HE · 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{EPRP5LDXYXHJQEHECPIHGCSVHB}

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	2026-05-18T01:46:38.564398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e2feac77c5ce9810e413d0730a553848c7d8c7a63c24e19295a1eb75371eb5

Aliases

arxiv: 1311.1222 · arxiv_version: 1311.1222v2 · doi: 10.48550/arxiv.1311.1222 · pith_short_12: EPRP5LDXYXHJ · pith_short_16: EPRP5LDXYXHJQEHE · pith_short_8: EPRP5LDX

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/EPRP5LDXYXHJQEHECPIHGCSVHB \
  | 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: 23e2feac77c5ce9810e413d0730a553848c7d8c7a63c24e19295a1eb75371eb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b87009020a116223d9de3c87174f8d539f87094b91f79042be2c815cb5a4c84",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-05T21:11:41Z",
    "title_canon_sha256": "8d01de742d6082c78f4f87e4520066b5c059fd2e0871bc3619eee2eb9ea3b05d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1222",
    "kind": "arxiv",
    "version": 2
  }
}