Pith Number

pith:EN73ZTHG

pith:2022:EN73ZTHGTQNHRE47AHIEYJJIMX

not attested not anchored not stored refs pending

A gap at 1 au in the disk of DI Cha A revealed by infrared interferometry

\'Agnes K\'osp\'al, Andr\'as P\'al, Attila Mo\'or, Gabriella Zsidi, J\'ozsef Varga, Lei Chen, P\'eter \'Abrah\'am, T\'imea Juh\'asz, Zsolt Reg\'aly

arxiv:2209.00553 v1 · 2022-09-01 · 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{EN73ZTHGTQNHRE47AHIEYJJIMX}

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	2026-07-05T04:53:51.346770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

237fbccce69c1a78939f01d04c252865e69baddec292446518bbab6682144ac1

Aliases

arxiv: 2209.00553 · arxiv_version: 2209.00553v1 · doi: 10.48550/arxiv.2209.00553 · pith_short_12: EN73ZTHGTQNH · pith_short_16: EN73ZTHGTQNHRE47 · pith_short_8: EN73ZTHG

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/EN73ZTHGTQNHRE47AHIEYJJIMX \
  | 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: 237fbccce69c1a78939f01d04c252865e69baddec292446518bbab6682144ac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a1ea000d7d2fef8a35e9aa0d6a9e96f92c45438d419c2417b31e76ae847aef9",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-09-01T15:55:07Z",
    "title_canon_sha256": "ae55935d7828df813b5761ffcf60c34762aa78c816ca67eb12d32f67f66476e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.00553",
    "kind": "arxiv",
    "version": 1
  }
}