Pith Number

pith:EY2WDE7I

pith:2011:EY2WDE7I6VO43KTLL2UO3KOFWS

not attested not anchored not stored refs pending

X-ray spectral variability in NGC 3783

A. C. Fabian, C. S. Reynolds, D. J. Walton, J. M. Miller, L. W. Brenneman, M. A. Nowak, M. Trippe, R. C. Reis, R. F. Mushotzky

arxiv:1110.6226 v1 · 2011-10-28 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY2WDE7I6VO43KTLL2UO3KOFWS}

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	2026-05-18T01:59:50.783514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26356193e8f55dcdaa6b5ea8eda9c5b49bc98e59f82149b9e9ee0796f937208d

Aliases

arxiv: 1110.6226 · arxiv_version: 1110.6226v1 · doi: 10.48550/arxiv.1110.6226 · pith_short_12: EY2WDE7I6VO4 · pith_short_16: EY2WDE7I6VO43KTL · pith_short_8: EY2WDE7I

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/EY2WDE7I6VO43KTLL2UO3KOFWS \
  | 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: 26356193e8f55dcdaa6b5ea8eda9c5b49bc98e59f82149b9e9ee0796f937208d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "228f1b4fff765f6db06641764b655b08d5ce10dfc9da8321d242ff77b475a77b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-10-28T01:01:19Z",
    "title_canon_sha256": "ceddcf60ca950f8906aceddb66b8698e334c0950bb201eed859d99c8d8c231b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6226",
    "kind": "arxiv",
    "version": 1
  }
}