Pith Number

pith:BGW4VQEG

pith:2018:BGW4VQEGEVZONKZ3KSDQM72A7P

not attested not anchored not stored refs pending

The dragonfly nearby galaxies survey. Iv. A giant stellar disk in ngc 2841

Allison Merritt, Jielai Zhang, Pieter van Dokkum, Roberto Abraham, Steven Janssens

arxiv:1802.02583 v1 · 2018-02-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BGW4VQEGEVZONKZ3KSDQM72A7P}

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	2026-05-18T00:20:02.212363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09adcac0862572e6ab3b5487067f40fbf49fd3fe301abffaa38f66f7ead64a87

Aliases

arxiv: 1802.02583 · arxiv_version: 1802.02583v1 · doi: 10.48550/arxiv.1802.02583 · pith_short_12: BGW4VQEGEVZO · pith_short_16: BGW4VQEGEVZONKZ3 · pith_short_8: BGW4VQEG

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/BGW4VQEGEVZONKZ3KSDQM72A7P \
  | 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: 09adcac0862572e6ab3b5487067f40fbf49fd3fe301abffaa38f66f7ead64a87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a437b2f815bb1c199dbbdcc3a56bcf7ac50c15dc10b3a7760f0f882206ef2ffa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-07T19:00:02Z",
    "title_canon_sha256": "11ebdda56e1d4f7ba45978e1aa59c89883d6e42672f51563f3cf73e49f5cb82d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02583",
    "kind": "arxiv",
    "version": 1
  }
}