Pith Number

pith:A7DQXHTJ

pith:2019:A7DQXHTJJLNGQNZA6TXJSQEK3H

not attested not anchored not stored refs pending

Following the Metals in the Intergalactic and Circumgalactic Medium over Cosmic Time

J. Christopher Howk, John M. O'Meara, Joseph N. Burchett, Joseph Ribaudo, Marc Rafelski, Molly S. Peeples, Nicolas Lehner, Sarah Tuttle

arxiv:1903.07636 v1 · 2019-03-18 · 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{A7DQXHTJJLNGQNZA6TXJSQEK3H}

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	2026-05-17T23:50:54.557224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07c70b9e694ada683720f4ee99408ad9d9060ea692cb36333c2f9f18e4d7934f

Aliases

arxiv: 1903.07636 · arxiv_version: 1903.07636v1 · doi: 10.48550/arxiv.1903.07636 · pith_short_12: A7DQXHTJJLNG · pith_short_16: A7DQXHTJJLNGQNZA · pith_short_8: A7DQXHTJ

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/A7DQXHTJJLNGQNZA6TXJSQEK3H \
  | 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: 07c70b9e694ada683720f4ee99408ad9d9060ea692cb36333c2f9f18e4d7934f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "270a3c22449d462e59db3c50a1f476381a773747822cfad1f041115ee2dfdb4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-18T18:01:54Z",
    "title_canon_sha256": "06e8aba1b0c5c4865abce21d6c7eb9028291a830056dfac4237ea95a14b18d7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07636",
    "kind": "arxiv",
    "version": 1
  }
}