Pith Number

pith:ERGQN3ES

pith:2022:ERGQN3ES2IQQ4TXVYOTSMXOLRE

not attested not anchored not stored refs pending

Simple interpretation of the seemingly complicated X-ray spectral variation of NGC 5548

Ken Ebisawa, Misaki Mizumoto, Takuya Midooka, Yasuharu Sugawara

arxiv:2205.03021 v1 · 2022-05-06 · 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{ERGQN3ES2IQQ4TXVYOTSMXOLRE}

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	2026-07-05T04:20:47.438008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab

Aliases

arxiv: 2205.03021 · arxiv_version: 2205.03021v1 · doi: 10.48550/arxiv.2205.03021 · pith_short_12: ERGQN3ES2IQQ · pith_short_16: ERGQN3ES2IQQ4TXV · pith_short_8: ERGQN3ES

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/ERGQN3ES2IQQ4TXVYOTSMXOLRE \
  | 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: 244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "694eccc6e9f76e3f8b165adb33ab574009614d0453460e20aa8a96a741e11119",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-05-06T05:31:22Z",
    "title_canon_sha256": "aeb62a00c6df0229f8f106724496795e697797a3ac254088eb31aecb279ef442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.03021",
    "kind": "arxiv",
    "version": 1
  }
}