Pith Number

pith:VEXU65JE

pith:2009:VEXU65JETQH2XEE6RW2YSV4UBU

not attested not anchored not stored refs pending

Long-term Photometric Behavior of the Eclipsing Binary GW Cephei

Chung-Uk Lee, Ho-Il Kim, Jae-Hyuck Youn, Jae Woo Lee, Jang-Ho Park, Robert H. Koch, Seung-Lee Kim, Wonyong Han

arxiv:0911.4554 v1 · 2009-11-24 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEXU65JETQH2XEE6RW2YSV4UBU}

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	2026-05-18T02:10:37.228054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a92f4f75249c0fab909e8db58957940d31c9400732676964cd36f28dd34ffb1b

Aliases

arxiv: 0911.4554 · arxiv_version: 0911.4554v1 · doi: 10.48550/arxiv.0911.4554 · pith_short_12: VEXU65JETQH2 · pith_short_16: VEXU65JETQH2XEE6 · pith_short_8: VEXU65JE

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/VEXU65JETQH2XEE6RW2YSV4UBU \
  | 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: a92f4f75249c0fab909e8db58957940d31c9400732676964cd36f28dd34ffb1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "054ef7ff4ce2b2acbf765f45a349082bfcb0f412a4c1fae9b7391f3401d59d01",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-24T06:36:37Z",
    "title_canon_sha256": "72e7a7abc190a8b6a85f12bc79d1d98bc94c4c60c27dfb4c963ae6388198b16c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4554",
    "kind": "arxiv",
    "version": 1
  }
}