Pith Number

pith:6GCEWH4H

pith:2018:6GCEWH4HMIG363S3A7HR3F35WV

not attested not anchored not stored refs pending

Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster - a post-merger scenario

A. Sheardown, C. Jones, C. Zhang, E. Churazov, E. Roediger, K. Dolag, N. Lyskova, W. Forman

arxiv:1811.07944 v2 · 2018-11-19 · astro-ph.HE · 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{6GCEWH4HMIG363S3A7HR3F35WV}

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	2026-05-17T23:51:52.294992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1844b1f87620dbf6e5b07cf1d977db5618284c428a8bd91304da51d48c6988e

Aliases

arxiv: 1811.07944 · arxiv_version: 1811.07944v2 · doi: 10.48550/arxiv.1811.07944 · pith_short_12: 6GCEWH4HMIG3 · pith_short_16: 6GCEWH4HMIG363S3 · pith_short_8: 6GCEWH4H

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/6GCEWH4HMIG363S3A7HR3F35WV \
  | 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: f1844b1f87620dbf6e5b07cf1d977db5618284c428a8bd91304da51d48c6988e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "579a0c0ea1080d45e565ce6cbeefe0ce5d025822d3bc876a8a48250aa444c16c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-11-19T19:28:59Z",
    "title_canon_sha256": "cda6ec13a20b972d6e428e1b84f254178021b558107dce83e2fc89bb15c28c20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07944",
    "kind": "arxiv",
    "version": 2
  }
}