Pith Number

pith:WNSDWVRD

pith:2002:WNSDWVRDHJUU2PWMOVFY32EGJ4

not attested not anchored not stored refs pending

Unconventional AGN in hard X-ray surveys

(2) Dipartimento di Astronomia - Bologna), A. Comastri (1), M. Brusa (2), M. Mignoli (1), the HELLAS2XMM collaboration ((1) INAF - OA Bologna

arxiv:astro-ph/0211306 v1 · 2002-11-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNSDWVRDHJUU2PWMOVFY32EGJ4}

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	2026-05-18T01:40:40.080722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3643b56233a694d3ecc754b8de8864f1ad23c20926f2e799c9083e687d7d70d

Aliases

arxiv: astro-ph/0211306 · arxiv_version: astro-ph/0211306v1 · doi: 10.48550/arxiv.astro-ph/0211306 · pith_short_12: WNSDWVRDHJUU · pith_short_16: WNSDWVRDHJUU2PWM · pith_short_8: WNSDWVRD

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/WNSDWVRDHJUU2PWMOVFY32EGJ4 \
  | 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: b3643b56233a694d3ecc754b8de8864f1ad23c20926f2e799c9083e687d7d70d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ff627def8ea02e541d7e2e01e48448d9b7738fac1e332b9f025c7b8300382ae",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-14T16:41:26Z",
    "title_canon_sha256": "f5da0e9c656627e0ca86e6a5b5b24a1384e8c0c6619c7474de7df7aa3632b826"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211306",
    "kind": "arxiv",
    "version": 1
  }
}