Pith Number

pith:YA4IGSWD

pith:2002:YA4IGSWDV6BVPUIT37CAV2EQAL

not attested not anchored not stored refs pending

Ferrofluid Based Deformable Mirrors - a New Approach to Adaptive Optics Using Liquid Mirrors

A. Ritcey, E.F. Borra, H. Yockell-Lelievre, L. Vieira da Silva Jr, M. Rioux, N. Robitaille, P. Laird, R. Bergamasco, S. Thibault, V. Berube

arxiv:astro-ph/0212189 v1 · 2002-12-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YA4IGSWDV6BVPUIT37CAV2EQAL}

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	2026-07-04T16:31:22.704612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c038834ac3af8357d113dfc40ae89002d8f74b142dc303bb3b7ee725a1449e6f

Aliases

arxiv: astro-ph/0212189 · arxiv_version: astro-ph/0212189v1 · doi: 10.48550/arxiv.astro-ph/0212189 · pith_short_12: YA4IGSWDV6BV · pith_short_16: YA4IGSWDV6BVPUIT · pith_short_8: YA4IGSWD

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/YA4IGSWDV6BVPUIT37CAV2EQAL \
  | 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: c038834ac3af8357d113dfc40ae89002d8f74b142dc303bb3b7ee725a1449e6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aba7077f342a74d62b3e4a1b4d3c1cd69039667e0a8d32988acfbc9ed926a0ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-08T22:33:28Z",
    "title_canon_sha256": "83679bc1521190241fadb8696db1a03eb2181c64230d1a84a7d911275f0180bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212189",
    "kind": "arxiv",
    "version": 1
  }
}