Pith Number

pith:HKNSI35A

pith:2012:HKNSI35A5R2EWXV2SMSNFQFNVE

not attested not anchored not stored refs pending

Discovery of fast, large-amplitude optical variability of V648 Car (=SS73-17)

1), (2) Sydney Institute for Astronomy, 3, (3) Australian Astronomical Observatory, 4), (4) Las Campanas Observatory, (5) Universidade Federal do Rio Grande do Norte, (6) INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, Australia, Brasil, C.E. Ferreira Lopes (5, Chile, F. Di Mille (2, Italy), N. Masetti (6) ((1) Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, R. Angeloni (1), The University of Sydney

arxiv:1207.5112 v1 · 2012-07-21 · 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{HKNSI35A5R2EWXV2SMSNFQFNVE}

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	2026-05-18T01:56:15.426296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a9b246fa0ec744b5eba9324d2c0ada900f9f923b26ee10bfa191897b4a5ad35

Aliases

arxiv: 1207.5112 · arxiv_version: 1207.5112v1 · doi: 10.48550/arxiv.1207.5112 · pith_short_12: HKNSI35A5R2E · pith_short_16: HKNSI35A5R2EWXV2 · pith_short_8: HKNSI35A

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/HKNSI35A5R2EWXV2SMSNFQFNVE \
  | 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: 3a9b246fa0ec744b5eba9324d2c0ada900f9f923b26ee10bfa191897b4a5ad35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86c4c57b0f2afae6b16a7afc4c0aaa9f0010aab12a408f7de01aa659a740a56e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-21T09:27:17Z",
    "title_canon_sha256": "a295bba6bc0b1d81736ce374af91fe27d37db60d8857448aa82b146822eadb84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5112",
    "kind": "arxiv",
    "version": 1
  }
}