Pith Number

pith:J7KPIYP5

pith:2011:J7KPIYP57YUZ4FDPVP6DDFXV6O

not attested not anchored not stored refs pending

The spectroscopic evolution of the recurrent nova T Pyxidis during its 2011 outburst I. The optically thick phase and the origin of moving lines in novae

A. Ederoclite (IAC de Canarias, H. Uthas (Columbia Univ.), INFN-Pisa), S. N. Shore (Univ. di Pisa, T. Augusteijn (Nordic Optical Telescope), Univ.de La Laguna)

arxiv:1108.3505 v1 · 2011-08-17 · 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{J7KPIYP57YUZ4FDPVP6DDFXV6O}

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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	2026-05-18T02:00:52.797909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd4f461fdfe299e146fabfc3196f5f38e3d741258e3aa8ba413a18112954dd3

Aliases

arxiv: 1108.3505 · arxiv_version: 1108.3505v1 · doi: 10.48550/arxiv.1108.3505 · pith_short_12: J7KPIYP57YUZ · pith_short_16: J7KPIYP57YUZ4FDP · pith_short_8: J7KPIYP5

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/J7KPIYP57YUZ4FDPVP6DDFXV6O \
  | 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: 4fd4f461fdfe299e146fabfc3196f5f38e3d741258e3aa8ba413a18112954dd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fa783e8d87465135b7fa3152eb3869ff7896913c00453c4a8b23b1cd279a080",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-08-17T15:15:47Z",
    "title_canon_sha256": "507923c552029a08216757315050bf1028a9493c0adef5c6ab2a043380542924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3505",
    "kind": "arxiv",
    "version": 1
  }
}