Pith Number

pith:MXNE5W6W

pith:2008:MXNE5W6WVUT25PQN7TQQIMYWT6

not attested not anchored not stored refs pending

The first two transient supersoft X-ray sources in M 31 globular clusters and the connection to classical novae

A.K.H. Kong, D.H. Hartmann, F. Haberl, G.G. Williams, G. Sala, H. Stiele, J. Greiner, K. Hornoch, M. Della Valle, M. Henze, M. Hernanz, P. Milne, R. Quimby, V. Burwitz, W. Pietsch

arxiv:0811.0718 v2 · 2008-11-05 · 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{MXNE5W6WVUT25PQN7TQQIMYWT6}

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	2026-05-18T02:15:22.131769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65da4edbd6ad27aebe0dfce10433169fa4ae11f5306a0bd4ad4867d5c370c390

Aliases

arxiv: 0811.0718 · arxiv_version: 0811.0718v2 · doi: 10.48550/arxiv.0811.0718 · pith_short_12: MXNE5W6WVUT2 · pith_short_16: MXNE5W6WVUT25PQN · pith_short_8: MXNE5W6W

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/MXNE5W6WVUT25PQN7TQQIMYWT6 \
  | 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: 65da4edbd6ad27aebe0dfce10433169fa4ae11f5306a0bd4ad4867d5c370c390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b82690e070fd0100324792d93d62c28146bba0f041f035574a549da702bc26ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-05T13:00:16Z",
    "title_canon_sha256": "5a6d3993788b222bf0ae2047416034f64e4664f7b48ba6f3a3bf6d8b9372f833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0718",
    "kind": "arxiv",
    "version": 2
  }
}