Pith Number

pith:X3PIMU6O

pith:2019:X3PIMU6O5G2FSARILDX74RFZ26

not attested not anchored not stored refs pending

The Hubble Catalog of Variables (HCV)

A. Karampelas, A. Livanis, A. Nota, A. Rest, A. Z. Bonanos, B. C. Whitmore, C. Arviset, C. Chatzichristodoulou, D. Baines, D. Hatzidimitriou, D. J. Lennon, E. Dimas, E. Paraskeva, E. Pouliasis, G. Kakaletris, G. Manouras, I. Bellas-Velidis, I. Georgantopoulos, J. Dur\'an, J. Salgado, K. A. Anastasiou, K. Tsinganos, K. V. Sokolovsky, M. Ar\'evalo, M. I. Moretti, M. Yang, N. Laskaris, P. Gavras, P. Sonnentrucker, P. Taylor, R. L. White, S. Lianou, S. Lubow, T. Budavari, V. Charmandaris, Z. T. Spetsieri

arxiv:1909.10757 v1 · 2019-09-24 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3PIMU6O5G2FSARILDX74RFZ26}

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	2026-07-05T00:07:01.915182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bede8653cee9b459022858effe44b9d7ba0212465f71fcd250d8fe9dd2844c6b

Aliases

arxiv: 1909.10757 · arxiv_version: 1909.10757v1 · doi: 10.48550/arxiv.1909.10757 · pith_short_12: X3PIMU6O5G2F · pith_short_16: X3PIMU6O5G2FSARI · pith_short_8: X3PIMU6O

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/X3PIMU6O5G2FSARILDX74RFZ26 \
  | 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: bede8653cee9b459022858effe44b9d7ba0212465f71fcd250d8fe9dd2844c6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65a667ae6d05d50795c03e6f49453247ad1fc8912c34068357b07a7a3681fffc",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-24T08:22:02Z",
    "title_canon_sha256": "74d1be8a74e62a71a41ec4c99e2215b3e76ba852452dd021597661aff53201af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.10757",
    "kind": "arxiv",
    "version": 1
  }
}