Pith Number

pith:NNP7HIIZ

pith:2018:NNP7HIIZFHKFSXH4GWOZDJQIL7

not attested not anchored not stored refs pending

Constraining the gap size in the disk around HD 100546 in the mid-infrared

Gijs Mulders, Hassan Fathivavsari, Narges Jamialahmadi, Olja Panic, Roy van Boekel, Sebastien Flement, Thomas Hening, Thorsten Ratzka, Walter Jaffe

arxiv:1808.05052 v1 · 2018-08-15 · 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{NNP7HIIZFHKFSXH4GWOZDJQIL7}

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	2026-05-18T00:03:03.950249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b5ff3a11929d4595cfc359d91a6085ff3c857314815f280eba134bb48528525

Aliases

arxiv: 1808.05052 · arxiv_version: 1808.05052v1 · doi: 10.48550/arxiv.1808.05052 · pith_short_12: NNP7HIIZFHKF · pith_short_16: NNP7HIIZFHKFSXH4 · pith_short_8: NNP7HIIZ

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/NNP7HIIZFHKFSXH4GWOZDJQIL7 \
  | 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: 6b5ff3a11929d4595cfc359d91a6085ff3c857314815f280eba134bb48528525

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2bde9975005912d68198f8594a9abeee5dfaa86599c5f58c6751dcecc7747c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-08-15T12:16:48Z",
    "title_canon_sha256": "aae137450e62af2ca07771c715349d90191b3255f66ba32d0e6bae00c11326db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05052",
    "kind": "arxiv",
    "version": 1
  }
}