Pith Number

pith:3XDHYAMW

pith:2018:3XDHYAMWPUXBKVL7RW7DK5Q7HE

not attested not anchored not stored refs pending

Fe I in the Beta Pictoris circumstellar gas disk. II. The time variations in the iron circumstellar gas

Alain Lecavelier des Etangs, Alfred Vidal-Madjar, David Ehrenreich, Flavien Kiefer, Guillaume H\'ebrard, Paul A. Wilson, Roger Ferlet, Vincent Bourrier

arxiv:1810.10421 v1 · 2018-10-24 · 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{3XDHYAMWPUXBKVL7RW7DK5Q7HE}

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	2026-05-17T23:56:45.222575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddc67c01967d2e15557f8dbe35761f390169948b439d3d812dd527a1d097bc48

Aliases

arxiv: 1810.10421 · arxiv_version: 1810.10421v1 · doi: 10.48550/arxiv.1810.10421 · pith_short_12: 3XDHYAMWPUXB · pith_short_16: 3XDHYAMWPUXBKVL7 · pith_short_8: 3XDHYAMW

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/3XDHYAMWPUXBKVL7RW7DK5Q7HE \
  | 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: ddc67c01967d2e15557f8dbe35761f390169948b439d3d812dd527a1d097bc48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4d354c55f785c89768e346c85abcd9324566ca6cde9e52b151a7fb6783ef791",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-24T14:31:21Z",
    "title_canon_sha256": "b13c67692ed1ea39d81ac6dcc6083444b78c291fa67f8d3368870c104c199b67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10421",
    "kind": "arxiv",
    "version": 1
  }
}