Pith Number

pith:FN6H4Y3A

pith:2021:FN6H4Y3APGA7EUYRACJTJWGGCB

not attested not anchored not stored refs pending

Tight multi-messenger constraints on the neutron star equation of state from GW170817 and a forward model for kilonova light curve synthesis

Ben Margalit, Evan J. Ridley, Graham P. Smith, James Nuttall, Matt Nicholl, Patricia Schmidt

arxiv:2102.02229 v2 · 2021-02-03 · astro-ph.HE · astro-ph.SR · gr-qc · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FN6H4Y3APGA7EUYRACJTJWGGCB}

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	2026-07-05T02:55:39.230391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b7c7e63607981f25311009334d8c61045acad5aa43e97d7090116ee5444d2f7

Aliases

arxiv: 2102.02229 · arxiv_version: 2102.02229v2 · doi: 10.48550/arxiv.2102.02229 · pith_short_12: FN6H4Y3APGA7 · pith_short_16: FN6H4Y3APGA7EUYR · pith_short_8: FN6H4Y3A

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/FN6H4Y3APGA7EUYRACJTJWGGCB \
  | 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: 2b7c7e63607981f25311009334d8c61045acad5aa43e97d7090116ee5444d2f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96afce4007a3931006b7c336740815bee1bbddab143e6f9f2f2388e4da2a9a1c",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "gr-qc",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-02-03T19:00:18Z",
    "title_canon_sha256": "994ff3503c858df9752a52d07a1bf573a71428afd62765b810e453cd214179c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02229",
    "kind": "arxiv",
    "version": 2
  }
}