Pith Number

pith:4VPNGUTF

pith:2014:4VPNGUTF6P55TG7G6TUNLHAPMQ

not attested not anchored not stored refs pending

Physical conditions derived from OII recombination lines in planetary nebulae and their implications

Antonio Peimbert, Gloria Delgado-Inglada, Jorge Garcia-Rojas, Manuel Peimbert, Miriam Pe\~na

arxiv:1408.4835 v1 · 2014-08-20 · astro-ph.GA · 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{4VPNGUTF6P55TG7G6TUNLHAPMQ}

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	2026-05-18T02:44:41.650691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e55ed35265f3fbd99be6f4e8d59c0f64387a9cf6587f16cf9f85209e4f879d49

Aliases

arxiv: 1408.4835 · arxiv_version: 1408.4835v1 · doi: 10.48550/arxiv.1408.4835 · pith_short_12: 4VPNGUTF6P55 · pith_short_16: 4VPNGUTF6P55TG7G · pith_short_8: 4VPNGUTF

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/4VPNGUTF6P55TG7G6TUNLHAPMQ \
  | 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: e55ed35265f3fbd99be6f4e8d59c0f64387a9cf6587f16cf9f85209e4f879d49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e323be6592c28386237318ae62b00bd9e277f8392f44ac34767853874b33632f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-08-20T23:21:32Z",
    "title_canon_sha256": "4282a058ea1d7190b5ffaf0be7b550e7c82255106eed4fc0b8d4adf000ac3e16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4835",
    "kind": "arxiv",
    "version": 1
  }
}