Pith Number

pith:QVMZ6UD7

pith:2011:QVMZ6UD7YZ2EVMK6SPKBLUFSHC

not attested not anchored not stored refs pending

The Planets around the Post-Common Envelope Binary NN Serpentis

C.M. Copperwheat, D.E. Winget, F.V. Hessman, G.F. Miller, J.J. Hermes, K. Beuermann, M.R. Schreiber, S. Dreizler, S.G. Parsons, S.P. Littlefair, T.R. Marsh, V.S. Dhillon, W. Kley

arxiv:1102.0508 v1 · 2011-02-02 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVMZ6UD7YZ2EVMK6SPKBLUFSHC}

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	2026-05-18T02:22:41.059791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85599f507fc6744ab15e93d415d0b238ac7cfedac3051f3a54cdfd1d3651f6e5

Aliases

arxiv: 1102.0508 · arxiv_version: 1102.0508v1 · doi: 10.48550/arxiv.1102.0508 · pith_short_12: QVMZ6UD7YZ2E · pith_short_16: QVMZ6UD7YZ2EVMK6 · pith_short_8: QVMZ6UD7

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/QVMZ6UD7YZ2EVMK6SPKBLUFSHC \
  | 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: 85599f507fc6744ab15e93d415d0b238ac7cfedac3051f3a54cdfd1d3651f6e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "071ce689c477a6d021358e5105533fd7c8f0c6a98b4dfff5131778d53ee507e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-02-02T17:32:24Z",
    "title_canon_sha256": "3a2ab0364e84f86ccf8d44eff6fdd9ec051622cb7d19f0c70aed4cdf01009eff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0508",
    "kind": "arxiv",
    "version": 1
  }
}