Pith Number

pith:HV7Z7N42

pith:2010:HV7Z7N42O2LZVFKBBPVP6WE6G6

not attested not anchored not stored refs pending

Optical variability of the ultraluminous X-ray source NGC 1313 X-2

D. Impiombato, F. Gris\'e, L. Zampieri, R. Falomo, R. Soria

arxiv:1011.2043 v1 · 2010-11-09 · 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{HV7Z7N42O2LZVFKBBPVP6WE6G6}

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	2026-05-18T02:04:49.893926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d7f9fb79a76979a95410beaff589e37a95bbda267da1fcd89fd927184e2f161

Aliases

arxiv: 1011.2043 · arxiv_version: 1011.2043v1 · doi: 10.48550/arxiv.1011.2043 · pith_short_12: HV7Z7N42O2LZ · pith_short_16: HV7Z7N42O2LZVFKB · pith_short_8: HV7Z7N42

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/HV7Z7N42O2LZVFKBBPVP6WE6G6 \
  | 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: 3d7f9fb79a76979a95410beaff589e37a95bbda267da1fcd89fd927184e2f161

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "477ef578f80c1323268739078553d00687b925426498a26966bb62f98a7c314d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-11-09T11:15:05Z",
    "title_canon_sha256": "dec620aa22d0c07e3afa3338aa8eafff285608a690a9f590e3b64e68885c5532"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2043",
    "kind": "arxiv",
    "version": 1
  }
}