Pith Number

pith:HVL7SI4L

pith:2016:HVL7SI4LHFDRC3QPKCOBUQ2ZI4

not attested not anchored not stored refs pending

The VORTEX coronagraphic test bench

Aissa Jolivet, Christian Delacroix, Dimitri Mawet, Elsa huby, Jean Surdej, Olivier Absil, Pierre Piron, Serge Habraken

arxiv:1604.08334 v1 · 2016-04-28 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVL7SI4LHFDRC3QPKCOBUQ2ZI4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:15:57.146975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d57f9238b3947116e0f509c1a43594736f6f5481911fcade627feaf2a1863c7

Aliases

arxiv: 1604.08334 · arxiv_version: 1604.08334v1 · doi: 10.48550/arxiv.1604.08334 · pith_short_12: HVL7SI4LHFDR · pith_short_16: HVL7SI4LHFDRC3QP · pith_short_8: HVL7SI4L

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/HVL7SI4LHFDRC3QPKCOBUQ2ZI4 \
  | 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: 3d57f9238b3947116e0f509c1a43594736f6f5481911fcade627feaf2a1863c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce6b7b3bf37886979795ce8c1d12bb6968949e8edecd27734dee7435a21ea022",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-04-28T07:44:19Z",
    "title_canon_sha256": "df11f7af94e7be4a44ea6fefd22329662a97033d255f34e9806cbcf14335d485"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08334",
    "kind": "arxiv",
    "version": 1
  }
}