Pith Number

pith:YWEMP377

pith:2013:YWEMP377AMCWTESUQAE4NOD346

not attested not anchored not stored refs pending

Shedding light on the nature of ESO 243-49 HLX-1

F. Annibali, L. Zampieri, M. Mapelli

arxiv:1302.2240 v1 · 2013-02-09 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YWEMP377AMCWTESUQAE4NOD346}

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	2026-05-18T03:34:01.915675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c588c7efff03056992548009c6b87be7a215961fda36bd5c1dc3df69091c17e5

Aliases

arxiv: 1302.2240 · arxiv_version: 1302.2240v1 · doi: 10.48550/arxiv.1302.2240 · pith_short_12: YWEMP377AMCW · pith_short_16: YWEMP377AMCWTESU · pith_short_8: YWEMP377

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/YWEMP377AMCWTESUQAE4NOD346 \
  | 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: c588c7efff03056992548009c6b87be7a215961fda36bd5c1dc3df69091c17e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61f918ce462c82690ccea662aa1bba3bbb83e98383e3fe3a40dae2e3cc897a26",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-02-09T15:45:02Z",
    "title_canon_sha256": "c8003845eadac9a04e0950c969f0d2997a0b149379fbf52b2dc64706c27ef6c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2240",
    "kind": "arxiv",
    "version": 1
  }
}