Pith Number

pith:H23C4EL4

pith:2022:H23C4EL436IUWPMLPTUETAIKCC

not attested not anchored not stored refs pending

Physical Conditions and Chemical Abundances of the Variable Planetary Nebula IC 4997

A. Danehkar, M. Parthasarathy

arxiv:2205.14250 v1 · 2022-05-27 · astro-ph.SR · 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{H23C4EL436IUWPMLPTUETAIKCC}

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	2026-07-05T04:32:16.951678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eb62e117cdf914b3d8b7ce849810a10841438825030ea595d5e3202a76699c4

Aliases

arxiv: 2205.14250 · arxiv_version: 2205.14250v1 · doi: 10.48550/arxiv.2205.14250 · pith_short_12: H23C4EL436IU · pith_short_16: H23C4EL436IUWPML · pith_short_8: H23C4EL4

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/H23C4EL436IUWPMLPTUETAIKCC \
  | 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: 3eb62e117cdf914b3d8b7ce849810a10841438825030ea595d5e3202a76699c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ca90789e597a1ecbfaa5075ab0ac14ef8665383ec5e509f6e0a7998c68afacb",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-05-27T21:59:19Z",
    "title_canon_sha256": "70d2f460f830fad620c1e053a23d4c0a025b1b3b00a4a66cccaa518ce8e34c70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.14250",
    "kind": "arxiv",
    "version": 1
  }
}