Pith Number

pith:L3UC5DW3

pith:2011:L3UC5DW3W2L3RP3RSYN3I5QZYH

not attested not anchored not stored refs pending

From X-ray dips to eclipse: Witnessing disk reformation in the recurrent nova USco

A. Dobrotka, A. Sadowski, A. Talavera, B.E. Schaefer, G. Sala, J.J. Drake, J.-U. Ness, K.L. Page, M. Hernanz, R. Barnard, R. Gonzalez-Riestra, S. Starrfield

arxiv:1105.2717 v2 · 2011-05-13 · astro-ph.GA · 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{L3UC5DW3W2L3RP3RSYN3I5QZYH}

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	2026-05-18T02:01:58.602002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ee82e8edbb697b8bf71961bb47619c1c3ce4a9a2b1bd73f1afa68aa47f74fe2

Aliases

arxiv: 1105.2717 · arxiv_version: 1105.2717v2 · doi: 10.48550/arxiv.1105.2717 · pith_short_12: L3UC5DW3W2L3 · pith_short_16: L3UC5DW3W2L3RP3R · pith_short_8: L3UC5DW3

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/L3UC5DW3W2L3RP3RSYN3I5QZYH \
  | 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: 5ee82e8edbb697b8bf71961bb47619c1c3ce4a9a2b1bd73f1afa68aa47f74fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03bc5434f1b698810c3a973846a615d3c5f1ac5f698ac8aba75fb37c6b703be2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-05-13T12:54:44Z",
    "title_canon_sha256": "9014264e7dec92fbcb61a22ef55d8315c5a5e7c4ce6d7a497c48819e165a84a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2717",
    "kind": "arxiv",
    "version": 2
  }
}