Pith Number

pith:HMZNONNP

pith:2003:HMZNONNPZ5VTR6ZAEALMJBERRV

not attested not anchored not stored refs pending

Long-Term X-ray Spectral Variability in Seyfert 1 Galaxies

(2) Institute of Astronomy, A. Markowitz (1), Cambridge), R. Edelson (1), S. Vaughan (2) ((1) UCLA

arxiv:astro-ph/0308312 v1 · 2003-08-18 · 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{HMZNONNPZ5VTR6ZAEALMJBERRV}

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.

Cited by

1 paper in Pith

A Disappearing Act: Constraints From "Missing" Flares of Repeating Partial TDE Candidates

Receipt and verification

First computed	2026-07-04T16:51:29.194185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b32d735afcf6b38fb202016c484918d6e4948ac9a9250bcf684c09cc0bb4d00

Aliases

arxiv: astro-ph/0308312 · arxiv_version: astro-ph/0308312v1 · doi: 10.48550/arxiv.astro-ph/0308312 · pith_short_12: HMZNONNPZ5VT · pith_short_16: HMZNONNPZ5VTR6ZA · pith_short_8: HMZNONNP

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/HMZNONNPZ5VTR6ZAEALMJBERRV \
  | 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: 3b32d735afcf6b38fb202016c484918d6e4948ac9a9250bcf684c09cc0bb4d00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be04033cc59f3fdedb10e59d303e92526f475369eb8dbdd4fbf4411087901283",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-08-18T22:00:41Z",
    "title_canon_sha256": "43c9d54483e15f680a2ce572dad2b1ae76cd2168cf5c588ff2bb38bab8499540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0308312",
    "kind": "arxiv",
    "version": 1
  }
}