Pith Number

pith:ZYCOKFUO

pith:2017:ZYCOKFUOTNP6A7LYZ5UHTSYWJQ

not attested not anchored not stored refs pending

Are fossil groups early-forming galaxy systems?

A. Kundert, E. D'Onghia, J. A. L. Aguerri

arxiv:1706.08542 v1 · 2017-06-26 · 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{ZYCOKFUOTNP6A7LYZ5UHTSYWJQ}

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	2026-05-18T00:37:33.474687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce04e5168e9b5fe07d78cf6879cb164c1b86a9bfbe88c44cfe0cfa3e97c593de

Aliases

arxiv: 1706.08542 · arxiv_version: 1706.08542v1 · doi: 10.48550/arxiv.1706.08542 · pith_short_12: ZYCOKFUOTNP6 · pith_short_16: ZYCOKFUOTNP6A7LY · pith_short_8: ZYCOKFUO

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/ZYCOKFUOTNP6A7LYZ5UHTSYWJQ \
  | 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: ce04e5168e9b5fe07d78cf6879cb164c1b86a9bfbe88c44cfe0cfa3e97c593de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "790b8119317ed12586dc7569fd741b6542f56bf5b031c752b560bd2ee5e4cdf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-26T18:01:05Z",
    "title_canon_sha256": "14862a61f6cc75e73f8095923eb3764eea4bf06a9aad02aa0c7286f3bd070b75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08542",
    "kind": "arxiv",
    "version": 1
  }
}