Pith Number

pith:VGRJBXV4

pith:2019:VGRJBXV4LMFMKCCEPL5USNGUXL

not attested not anchored not stored refs pending

Bipolar Planetary Nebulae from Outflow Collimation by Common Envelope Evolution

Adam Frank, Baowei Liu, Bruce Balick, Eric G. Blackman, Jason Nordhaus, Jonathan Carroll-Nellenback, Luke Chamandy, Orsola De Marco, Thomas Reichardt, Yangyuxin Zou, Zhuo Chen

arxiv:1912.01647 v2 · 2019-12-03 · 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{VGRJBXV4LMFMKCCEPL5USNGUXL}

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	2026-07-05T01:22:38.989194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9a290debc5b0ac508447afb4934d4bae5e57c7c64e41cb3052b6bfc0f5fe75b

Aliases

arxiv: 1912.01647 · arxiv_version: 1912.01647v2 · doi: 10.48550/arxiv.1912.01647 · pith_short_12: VGRJBXV4LMFM · pith_short_16: VGRJBXV4LMFMKCCE · pith_short_8: VGRJBXV4

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/VGRJBXV4LMFMKCCEPL5USNGUXL \
  | 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: a9a290debc5b0ac508447afb4934d4bae5e57c7c64e41cb3052b6bfc0f5fe75b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "756a81376a554958bb345d2766c2d8dc659e8a017d4bbb84e445f09095a24bab",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-12-03T19:39:50Z",
    "title_canon_sha256": "1e0c660a66944ad6f1a477a916fa7607612924004f7b5338fb32b4709a3d677e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.01647",
    "kind": "arxiv",
    "version": 2
  }
}