Pith Number

pith:IYILWL2I

pith:2012:IYILWL2IUW63ZKHYIYXZM4QYLG

not attested not anchored not stored refs pending

Coronagraphic observations of Fomalhaut at solar system scales

(2) ETH Zurich, (3) ESO Santiago, (4) ESO Garching), J. H. Girard (3), M. A. Kenworthy (1), M. Kasper (4) ((1) Leiden Observatory, M. R. Meyer (2), S. P. Quanz (2), T. Meshkat (1)

arxiv:1212.1459 v1 · 2012-12-06 · 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{IYILWL2IUW63ZKHYIYXZM4QYLG}

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	2026-05-18T01:52:46.824145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4610bb2f48a5bdbca8f8462f967218598ee677297fa59026231c25cee7aa6875

Aliases

arxiv: 1212.1459 · arxiv_version: 1212.1459v1 · doi: 10.48550/arxiv.1212.1459 · pith_short_12: IYILWL2IUW63 · pith_short_16: IYILWL2IUW63ZKHY · pith_short_8: IYILWL2I

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/IYILWL2IUW63ZKHYIYXZM4QYLG \
  | 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: 4610bb2f48a5bdbca8f8462f967218598ee677297fa59026231c25cee7aa6875

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e4771e1643237fe5105c1477c6abcc14b0abaf7d8876edf34a31e5766d42f5",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-06T21:00:04Z",
    "title_canon_sha256": "7726d7a4739153083908fc704cf7a32cd38a5356867682346b10ddd10ad420f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1459",
    "kind": "arxiv",
    "version": 1
  }
}