Pith Number

pith:3J6YO2LE

pith:2021:3J6YO2LEV5DS77Y2HBLYJE6CFQ

not attested not anchored not stored refs pending

An episodically variable stellar wind in the planetary nebula IC\,4997

Jorge Lillo-Box, Jos\'e M. Torrelles, Luis F. Miranda

arxiv:2112.13607 v1 · 2021-12-27 · 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{3J6YO2LEV5DS77Y2HBLYJE6CFQ}

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	2026-07-05T03:47:47.620716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da7d876964af472fff1a38578493c22c116713baeb3620435ab1fb379416a143

Aliases

arxiv: 2112.13607 · arxiv_version: 2112.13607v1 · doi: 10.48550/arxiv.2112.13607 · pith_short_12: 3J6YO2LEV5DS · pith_short_16: 3J6YO2LEV5DS77Y2 · pith_short_8: 3J6YO2LE

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/3J6YO2LEV5DS77Y2HBLYJE6CFQ \
  | 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: da7d876964af472fff1a38578493c22c116713baeb3620435ab1fb379416a143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "581e6f02c23d4109d7bc0f60c0ee601e6c384baf1dd54aa39f9035b7f6375639",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-12-27T11:00:44Z",
    "title_canon_sha256": "86aba2a969900284473f3f6da510a1b3b2baddba4868be108fb6c25311985870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.13607",
    "kind": "arxiv",
    "version": 1
  }
}