Pith Number

pith:3FK4FJXY

pith:2018:3FK4FJXYB3DEYZU2USSZ2D2ZQ3

not attested not anchored not stored refs pending

Improvements in Gravitational-Wave Sky Localization with Expanded Networks of Interferometers

Chris Pankow, Eve A. Chase, Michael Zevin, Scott Coughlin, Vassiliki Kalogera

arxiv:1801.02674 v2 · 2018-01-08 · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3FK4FJXYB3DEYZU2USSZ2D2ZQ3}

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	2026-05-18T00:22:23.324535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d955c2a6f80ec64c669aa4a59d0f5986f5ee2c6d17680a1870af4b3a9412a39d

Aliases

arxiv: 1801.02674 · arxiv_version: 1801.02674v2 · doi: 10.48550/arxiv.1801.02674 · pith_short_12: 3FK4FJXYB3DE · pith_short_16: 3FK4FJXYB3DEYZU2 · pith_short_8: 3FK4FJXY

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/3FK4FJXYB3DEYZU2USSZ2D2ZQ3 \
  | 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: d955c2a6f80ec64c669aa4a59d0f5986f5ee2c6d17680a1870af4b3a9412a39d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94e986873d107844870b597d33e98a53f8b048de91153ebaa4e581a0f8640d54",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-01-08T20:15:09Z",
    "title_canon_sha256": "a9adaea1d79b63f2b99a9c1454b8e5037274bcbc4c8f1d9fce5bf4408e7027cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02674",
    "kind": "arxiv",
    "version": 2
  }
}