Pith Number

pith:TJ7D2C7V

pith:2013:TJ7D2C7V2G5E3FESZD3FTL5WVY

not attested not anchored not stored refs pending

Time lags in the ultraluminous X-ray source NGC 5408 X-1: implications for the black hole mass

B. De Marco, G. Miniutti, G. Ponti, M. Cappi, M. Dadina, T. Belloni, T. Mu\~noz-Darias

arxiv:1310.0042 v1 · 2013-09-30 · 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{TJ7D2C7V2G5E3FESZD3FTL5WVY}

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	2026-05-18T01:47:24.127717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a7e3d0bf5d1ba4d9492c8f659afb6ae3a6a4b61be3d4451c5a31ea109549c36

Aliases

arxiv: 1310.0042 · arxiv_version: 1310.0042v1 · doi: 10.48550/arxiv.1310.0042 · pith_short_12: TJ7D2C7V2G5E · pith_short_16: TJ7D2C7V2G5E3FES · pith_short_8: TJ7D2C7V

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/TJ7D2C7V2G5E3FESZD3FTL5WVY \
  | 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: 9a7e3d0bf5d1ba4d9492c8f659afb6ae3a6a4b61be3d4451c5a31ea109549c36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7abde67a0fc79a2b38789ba3f29f1118dd2eecc604400eebaea571385db59a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-09-30T20:33:19Z",
    "title_canon_sha256": "f64c69623790fd9d86a0f658331fca1ad0adefcf0def1fa081ab7f7f471384a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.0042",
    "kind": "arxiv",
    "version": 1
  }
}