Pith Number

pith:EFHBHFJ4

pith:2015:EFHBHFJ4WQLGRVI6WYUQ4MHB3M

not attested not anchored not stored refs pending

High-contrast imaging of Sirius~A with VLT/SPHERE: Looking for giant planets down to one astronomical unit

A. Vigan, C. Gry, C. Moutou, D. Homeier, D. Mesa, F. Allard, G. Salter

arxiv:1509.00015 v1 · 2015-08-31 · astro-ph.EP · 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{EFHBHFJ4WQLGRVI6WYUQ4MHB3M}

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	2026-05-18T01:31:31.002480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

214e13953cb41668d51eb6290e30e1db33a58259be6ce9e55c2532cb3b49704e

Aliases

arxiv: 1509.00015 · arxiv_version: 1509.00015v1 · doi: 10.48550/arxiv.1509.00015 · pith_short_12: EFHBHFJ4WQLG · pith_short_16: EFHBHFJ4WQLGRVI6 · pith_short_8: EFHBHFJ4

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/EFHBHFJ4WQLGRVI6WYUQ4MHB3M \
  | 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: 214e13953cb41668d51eb6290e30e1db33a58259be6ce9e55c2532cb3b49704e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88f8d0af134b1db72be119a4ac003851ff56aeacb982d9691efd198bb851a607",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-08-31T20:10:22Z",
    "title_canon_sha256": "7ae9cab6b0d4a9d1d9607f93fc3168d08c9c8bc4ab676db183983675bde7a6a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00015",
    "kind": "arxiv",
    "version": 1
  }
}