Pith Number

pith:WULL2T7V

pith:2018:WULL2T7V72WN7QAYDDFL4HXQOQ

not attested not anchored not stored refs pending

Photo-evaporation of proto-planetary gas discs due to flybys of external single stars in different orbits

Hui-Gen Liu, Hui Zhang, Ji-Wei Xie, Ming Yang, Wen-bo Wu, Yuan-Zhe Dai

arxiv:1808.05531 v2 · 2018-08-16 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WULL2T7V72WN7QAYDDFL4HXQOQ}

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	2026-05-18T00:07:39.729932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b516bd4ff5feacdfc01818cabe1ef074072ffb6b21992ea4d4a92dc19de8754e

Aliases

arxiv: 1808.05531 · arxiv_version: 1808.05531v2 · doi: 10.48550/arxiv.1808.05531 · pith_short_12: WULL2T7V72WN · pith_short_16: WULL2T7V72WN7QAY · pith_short_8: WULL2T7V

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/WULL2T7V72WN7QAYDDFL4HXQOQ \
  | 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: b516bd4ff5feacdfc01818cabe1ef074072ffb6b21992ea4d4a92dc19de8754e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "129cc07269e1ff8c9a70fe599338124f50322a97489ac1b1896318e061746d9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-08-16T15:07:01Z",
    "title_canon_sha256": "4a0869d972cda2cc6fa8ef03a4087e32d31a3338ab8915e663b453a38eac833d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05531",
    "kind": "arxiv",
    "version": 2
  }
}