Pith Number

pith:IYDOHYPC

pith:2009:IYDOHYPCEWWYGEHDKHCJYOFTXO

not attested not anchored not stored refs pending

A Multi-wavelength Differential Imaging Experiment for the High Contrast Imaging Testbed

Andreas Kuhnert, Beth Biller, Brian Kern, Dwight Moody, John Trauger, Karl Stapelfeldt, Laird Close, Wesley A. Traub

arxiv:0906.0395 v1 · 2009-06-01 · 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{IYDOHYPCEWWYGEHDKHCJYOFTXO}

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	2026-05-18T02:13:29.942544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4606e3e1e225ad8310e351c49c38b3bb8175f618ce21f429e0f37e7661968373

Aliases

arxiv: 0906.0395 · arxiv_version: 0906.0395v1 · doi: 10.48550/arxiv.0906.0395 · pith_short_12: IYDOHYPCEWWY · pith_short_16: IYDOHYPCEWWYGEHD · pith_short_8: IYDOHYPC

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/IYDOHYPCEWWYGEHDKHCJYOFTXO \
  | 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: 4606e3e1e225ad8310e351c49c38b3bb8175f618ce21f429e0f37e7661968373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dd332c0c9e87d72681771d9b87f92d61635c13a54e138725003d8cb2f2996bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-06-01T23:48:47Z",
    "title_canon_sha256": "83f016d5101ff7336164717f9e327e6685a6ed8738c9e60896789e2cf66aa214"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0395",
    "kind": "arxiv",
    "version": 1
  }
}