Pith Number

pith:AP54VNA2

pith:2006:AP54VNA23IREF5ZHQPFUY6ZN7X

not attested not anchored not stored refs pending

Discovery of an eclipsing X-ray binary with a 32.69 hour period in M101: an analog of Her X-1 or LMC X-4?

Albert Kong (MIT), Jeffrey McClintock (CfA), Jifeng Liu, Joel Bregman (UMich), Kip Kuntz (JHU/GSFC), Rosanne Di Stefano

arxiv:astro-ph/0608354 v1 · 2006-08-16 · 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{AP54VNA23IREF5ZHQPFUY6ZN7X}

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	2026-07-04T15:19:10.871785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03fbcab41ada2242f72783cb4c7b2dfdf7e8619ffda3b54f062f4626c8e5ac31

Aliases

arxiv: astro-ph/0608354 · arxiv_version: astro-ph/0608354v1 · doi: 10.48550/arxiv.astro-ph/0608354 · pith_short_12: AP54VNA23IRE · pith_short_16: AP54VNA23IREF5ZH · pith_short_8: AP54VNA2

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/AP54VNA23IREF5ZHQPFUY6ZN7X \
  | 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: 03fbcab41ada2242f72783cb4c7b2dfdf7e8619ffda3b54f062f4626c8e5ac31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccd95d58764fa307dcc4368e9181a76701a35ab8b29de112c0ae65cc47fcc80d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-08-16T20:41:32Z",
    "title_canon_sha256": "fd9447a534d6bf3711636e22de9f621aacba710fec84e56425792d00b687c75e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0608354",
    "kind": "arxiv",
    "version": 1
  }
}