Pith Number

pith:HKTY2DXG

pith:2009:HKTY2DXG2ST7WX6WPJM53YNHEQ

not attested not anchored not stored refs pending

A List of Bright Interferometric Calibrators measured at the ESO VLTI

A. Richichi, I. Percheron, J. Davis

arxiv:0906.3981 v1 · 2009-06-22 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HKTY2DXG2ST7WX6WPJM53YNHEQ}

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	2026-05-18T00:57:18.704043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aa78d0ee6d4a7fb5fd67a59dde1a724131b3fa971e6deacbe231f0b689b94b7

Aliases

arxiv: 0906.3981 · arxiv_version: 0906.3981v1 · doi: 10.48550/arxiv.0906.3981 · pith_short_12: HKTY2DXG2ST7 · pith_short_16: HKTY2DXG2ST7WX6W · pith_short_8: HKTY2DXG

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/HKTY2DXG2ST7WX6WPJM53YNHEQ \
  | 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: 3aa78d0ee6d4a7fb5fd67a59dde1a724131b3fa971e6deacbe231f0b689b94b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e3bac99a2f44ea72a25b64c6a3dda1772841b6a3db82783871614c6d5bf805",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-06-22T11:29:03Z",
    "title_canon_sha256": "e1991ec8ab9d2622f8aa93f028ab475116caa1cf8a1361f8f1b6260aa5652a18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3981",
    "kind": "arxiv",
    "version": 1
  }
}