Pith Number

pith:4TQ4WZ4V

pith:2008:4TQ4WZ4VYVY47XBMCSVMJPIKAJ

not attested not anchored not stored refs pending

The Chandra ACIS Survey of M33 (ChASeM33): Transient X-ray Sources Discovered in M33

Avi Shporer, Benjamin F. Williams, Frank Haberl, Manami Sasaki, Parviz Ghavamian, Paul P. Plucinsky, Terrance J. Gaetz, Thomas G. Pannuti, T. Mazeh, Wolfgang Pietsch

arxiv:0802.3724 v1 · 2008-02-26 · 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{4TQ4WZ4VYVY47XBMCSVMJPIKAJ}

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

Transient and Variable Ultra-luminous X-ray Sources in NGC 4552

Receipt and verification

First computed	2026-07-04T17:09:34.526884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4e1cb6795c571cfdc2c14aac4bd0a02748bf0821e0b818dcd9bac3021b6e5ba

Aliases

arxiv: 0802.3724 · arxiv_version: 0802.3724v1 · doi: 10.48550/arxiv.0802.3724 · pith_short_12: 4TQ4WZ4VYVY4 · pith_short_16: 4TQ4WZ4VYVY47XBM · pith_short_8: 4TQ4WZ4V

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/4TQ4WZ4VYVY47XBMCSVMJPIKAJ \
  | 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: e4e1cb6795c571cfdc2c14aac4bd0a02748bf0821e0b818dcd9bac3021b6e5ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16ae8fc27515339bc41d8d5dd6b2ce9ca339022d72227380ff634336583ed00a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-26T00:48:39Z",
    "title_canon_sha256": "b2051bf145b849aa04ec3fd3bc9591cf96d3b1ff1e0cf0c024d43cd87de00c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3724",
    "kind": "arxiv",
    "version": 1
  }
}