Pith Number

pith:ZJMH5XKP

pith:2010:ZJMH5XKPQO6NNDXWI6BCU277A4

not attested not anchored not stored refs pending

Secular changes in the quiescence of WZ Sge: the development of a cavity in the inner disk

(2) AAVSO, (3) Indiana University, (4) TMT Observatory Corporation, (5) University of Leicester, A.A. Henden (2), E. Kuulkers (1), E.O. Waagen (2), G.A. Wynn (5) ((1) ESA/ESAC, R.K. Honeycutt (3), Spain, UK), USA, W. Skidmore (4)

arxiv:1001.4975 v2 · 2010-01-27 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZJMH5XKPQO6NNDXWI6BCU277A4}

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	2026-05-18T02:09:29.182404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca587edd4f83bcd68ef647822a6bff070f0fef54341d24f6b25d0f04b74f4aa6

Aliases

arxiv: 1001.4975 · arxiv_version: 1001.4975v2 · doi: 10.48550/arxiv.1001.4975 · pith_short_12: ZJMH5XKPQO6N · pith_short_16: ZJMH5XKPQO6NNDXW · pith_short_8: ZJMH5XKP

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/ZJMH5XKPQO6NNDXWI6BCU277A4 \
  | 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: ca587edd4f83bcd68ef647822a6bff070f0fef54341d24f6b25d0f04b74f4aa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6743719a3af80cb9114c3ba4957627bdd27c824580d9c20d174c2eb3d7807f2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-27T16:25:33Z",
    "title_canon_sha256": "d8350039650ed06a4016712e97416e1fa0415000f6dc3911ca60f7ea78f5648d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4975",
    "kind": "arxiv",
    "version": 2
  }
}