Pith Number

pith:YPIE2377

pith:2019:YPIE23776FE2V33EHVIYALEM5C

not attested not anchored not stored refs pending

On the triple-star origin of the planetary nebula Sh 2-71

David Jones, Ondrej Pejcha, Romano L.M. Corradi

arxiv:1908.04582 v2 · 2019-08-13 · 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{YPIE23776FE2V33EHVIYALEM5C}

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	2026-07-05T00:02:02.564582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3d04d6ffff149aaef643d51802c8ce8a183999c26d34613c57cc00e12389cf7

Aliases

arxiv: 1908.04582 · arxiv_version: 1908.04582v2 · doi: 10.48550/arxiv.1908.04582 · pith_short_12: YPIE23776FE2 · pith_short_16: YPIE23776FE2V33E · pith_short_8: YPIE2377

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/YPIE23776FE2V33EHVIYALEM5C \
  | 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: c3d04d6ffff149aaef643d51802c8ce8a183999c26d34613c57cc00e12389cf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbada84c8a50875d1c8e4072826b5768e7bc2dece0b16cd3d67bc6069d3162c4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-08-13T11:30:29Z",
    "title_canon_sha256": "921abf78a8d3a61d2291a8f079d9a59dd69563fcd3e9bd793923eac32a8c6ea9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04582",
    "kind": "arxiv",
    "version": 2
  }
}