Pith Number

pith:6A667OQ5

pith:2002:6A667OQ5MNZ74I5SVR2YZ3BQQ3

not attested not anchored not stored refs pending

First optical identification of a suprsoft X-ray source in M31

C. Conselice, E. Magnier, J. Greiner, K. Birkle, M. Della Valle, M. Orio, N.A. Tikhonov, P. Nedialkov

arxiv:astro-ph/0205120 v1 · 2002-05-08 · 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{6A667OQ5MNZ74I5SVR2YZ3BQQ3}

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	2026-05-18T01:07:44.859480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f03defba1d6373fe23b2ac758cec3086cdf3e16f2c950e9d50dd12f6d3cce631

Aliases

arxiv: astro-ph/0205120 · arxiv_version: astro-ph/0205120v1 · doi: 10.48550/arxiv.astro-ph/0205120 · pith_short_12: 6A667OQ5MNZ7 · pith_short_16: 6A667OQ5MNZ74I5S · pith_short_8: 6A667OQ5

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/6A667OQ5MNZ74I5SVR2YZ3BQQ3 \
  | 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: f03defba1d6373fe23b2ac758cec3086cdf3e16f2c950e9d50dd12f6d3cce631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c34778ed3cdaa8668968141314c4d7372298a222a859020afbdbf259e2088ad0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-08T14:48:42Z",
    "title_canon_sha256": "fe74256b5858afccc3edaa3d08298c12e8413fdec6e4de360905b4d4076e39af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205120",
    "kind": "arxiv",
    "version": 1
  }
}