Pith Number

pith:5YD5CQNS

pith:2022:5YD5CQNSF6IQB45FHF5EPF6QTC

not attested not anchored not stored refs pending

Can pre-supernova winds from massive stars enrich the interstellar medium with nitrogen at high redshift?

Alexander Heger, Arpita Roy, Lisa J. Kewley, Mark R. Krumholz, Michael A. Dopita, Ralph S. Sutherland

arxiv:2212.05103 v1 · 2022-12-09 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YD5CQNSF6IQB45FHF5EPF6QTC}

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	2026-07-05T05:24:00.549673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee07d141b22f9100f3a5397a4797d0988d754688d3fcaf43a866670d99c5292a

Aliases

arxiv: 2212.05103 · arxiv_version: 2212.05103v1 · doi: 10.48550/arxiv.2212.05103 · pith_short_12: 5YD5CQNSF6IQ · pith_short_16: 5YD5CQNSF6IQB45F · pith_short_8: 5YD5CQNS

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/5YD5CQNSF6IQB45FHF5EPF6QTC \
  | 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: ee07d141b22f9100f3a5397a4797d0988d754688d3fcaf43a866670d99c5292a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f22624cbee3c5831480e706550048a7941d4eee023f03e0b4ddd575c7344475",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-12-09T20:06:23Z",
    "title_canon_sha256": "4097ddc7165d193fc8bd36063cf7c109293eb94b6ed487bb5848ca4a4d0b5f53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.05103",
    "kind": "arxiv",
    "version": 1
  }
}