Pith Number

pith:UWMK4GDY

pith:2013:UWMK4GDYVBAM5ERFMN2SI2Z44P

not attested not anchored not stored refs pending

Optical variability of the accretion disk around the intermediate mass black hole ESO 243-49 HLX-1 during the 2012 outburst

D. Barret, J.-P. Lasota, K. Wiersema, M. Servillat, N. A. Webb, O. Godet, S. A. Farrell, T. J. Maccarone

arxiv:1311.6912 v1 · 2013-11-27 · 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{UWMK4GDYVBAM5ERFMN2SI2Z44P}

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	2026-05-18T01:46:05.763732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a598ae1878a840ce92256375246b3ce3e83cd439c566eb61211fc594558c41fb

Aliases

arxiv: 1311.6912 · arxiv_version: 1311.6912v1 · doi: 10.48550/arxiv.1311.6912 · pith_short_12: UWMK4GDYVBAM · pith_short_16: UWMK4GDYVBAM5ERF · pith_short_8: UWMK4GDY

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/UWMK4GDYVBAM5ERFMN2SI2Z44P \
  | 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: a598ae1878a840ce92256375246b3ce3e83cd439c566eb61211fc594558c41fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4221d0761f8a2e0af705b8b0f43febfe96132715a8356b5037547b685d19dd7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-27T09:49:14Z",
    "title_canon_sha256": "e1e2271310fd5ebf37a7005b7e95148af6d83edd7c7776e687c0632238c3a6d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6912",
    "kind": "arxiv",
    "version": 1
  }
}