Pith Number

pith:PDMVTNNG

pith:2022:PDMVTNNGD7AXGYJNMKCS6H7735

not attested not anchored not stored refs pending

Helium absorption in exoplanet atmospheres is connected to stellar coronal abundances

K. Poppenhaeger

arxiv:2202.08838 v1 · 2022-02-17 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDMVTNNGD7AXGYJNMKCS6H7735}

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	2026-07-05T04:04:04.681343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d959b5a61fc173612d62852f1fffdf7eeb800f7b148c757e5161eed1d47115

Aliases

arxiv: 2202.08838 · arxiv_version: 2202.08838v1 · doi: 10.48550/arxiv.2202.08838 · pith_short_12: PDMVTNNGD7AX · pith_short_16: PDMVTNNGD7AXGYJN · pith_short_8: PDMVTNNG

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/PDMVTNNGD7AXGYJNMKCS6H7735 \
  | 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: 78d959b5a61fc173612d62852f1fffdf7eeb800f7b148c757e5161eed1d47115

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c47e2d8a6c236788db822c742395b17dd189496bac00595d70c06ace8bb930",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-02-17T18:59:32Z",
    "title_canon_sha256": "7ebbbcfac656895ceea45e180e36b60b3ed2722b3ea8e7ce4f856c0a5be5181b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.08838",
    "kind": "arxiv",
    "version": 1
  }
}