Pith Number

pith:VPMUJFYE

pith:2019:VPMUJFYEJSSRL7XQIVL4WLVLP5

not attested not anchored not stored refs pending

Metallicity has followed local gravitational potential of galaxies since z=3

Lise Christensen, Palle M{\o}ller

arxiv:1908.05362 v1 · 2019-08-14 · 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{VPMUJFYEJSSRL7XQIVL4WLVLP5}

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	2026-07-05T00:34:42.812605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abd94497044ca515fef04557cb2eab7f612f2d7d04dc74fd7f591ef4b665514e

Aliases

arxiv: 1908.05362 · arxiv_version: 1908.05362v1 · doi: 10.48550/arxiv.1908.05362 · pith_short_12: VPMUJFYEJSSR · pith_short_16: VPMUJFYEJSSRL7XQ · pith_short_8: VPMUJFYE

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/VPMUJFYEJSSRL7XQIVL4WLVLP5 \
  | 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: abd94497044ca515fef04557cb2eab7f612f2d7d04dc74fd7f591ef4b665514e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d57635b2a23ece03f1fac7a6216d999100701be0743d9a5a5d8da7e3d6baa7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-14T22:12:25Z",
    "title_canon_sha256": "de3ae2e3d0f201103d1086cb940dae7ee2b8651d34b1d8dfbfce1228d2f70152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05362",
    "kind": "arxiv",
    "version": 1
  }
}