Pith Number

pith:7WJRFPWA

pith:2021:7WJRFPWAZ4XZOO5YZCSZJRI7UF

not attested not anchored not stored refs pending

First detection of a disk free of volatile elements around a young A-type star: A sign of collisions between rocky planets?

C.F. Manara, D.J.M. Petit dit de la Roche, M.E. van den Ancker, M.G. Petr-Gotzens, M. Vioque, N.P. Gentile Fusillo, O. Panic, P.A. Miles-P\'aez, R.D. Oudmaijer, T.J. Haworth

arxiv:2105.08327 v2 · 2021-05-18 · astro-ph.SR · 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{7WJRFPWAZ4XZOO5YZCSZJRI7UF}

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	2026-07-05T03:01:18.269842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd9312bec0cf2f973bb8c8a594c51fa152f49bbeb34af64a2c9f842efc2a6826

Aliases

arxiv: 2105.08327 · arxiv_version: 2105.08327v2 · doi: 10.48550/arxiv.2105.08327 · pith_short_12: 7WJRFPWAZ4XZ · pith_short_16: 7WJRFPWAZ4XZOO5Y · pith_short_8: 7WJRFPWA

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/7WJRFPWAZ4XZOO5YZCSZJRI7UF \
  | 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: fd9312bec0cf2f973bb8c8a594c51fa152f49bbeb34af64a2c9f842efc2a6826

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "449f5130caebcf22131bea267425a3ef6c2ab13ad43fce9f59c076d43c86a6d0",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-05-18T07:48:17Z",
    "title_canon_sha256": "0741c652eea6eedee4fde530ecbeb2cca0ebe558b62fb07610018130ee28de79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.08327",
    "kind": "arxiv",
    "version": 2
  }
}