Pith Number

pith:WMURXK2S

pith:2024:WMURXK2SRU7I4IPFS6TTKA7VZE

not attested not anchored not stored refs pending

Modeling the Galactic Chemical Evolution of Helium

David H. Weinberg, James W. Johnson, Miqaela K. Weller

arxiv:2404.08765 v1 · 2024-04-12 · 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{WMURXK2SRU7I4IPFS6TTKA7VZE}

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	2026-07-05T08:07:39.645303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3291bab528d3e8e21e597a73503f5c9048c3952d4ada54a4cc1f322439487b4

Aliases

arxiv: 2404.08765 · arxiv_version: 2404.08765v1 · doi: 10.48550/arxiv.2404.08765 · pith_short_12: WMURXK2SRU7I · pith_short_16: WMURXK2SRU7I4IPF · pith_short_8: WMURXK2S

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/WMURXK2SRU7I4IPFS6TTKA7VZE \
  | 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: b3291bab528d3e8e21e597a73503f5c9048c3952d4ada54a4cc1f322439487b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f74cd080deee872b2855097d4bf8a2583cf3aa79f6ec5dfc87c3ac758b4aa949",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-04-12T18:45:03Z",
    "title_canon_sha256": "aaff9589d8e485c6d1f1591ac850384859e71d84b073c2c097fadb59aad7407e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.08765",
    "kind": "arxiv",
    "version": 1
  }
}