Pith Number

pith:J43UTZ47

pith:2008:J43UTZ47LOCFAFEUAU6FAO6NPJ

not attested not anchored not stored refs pending

Optical-mechanical operation of the F2T2 Filter: a tunable filter designed to search for First Light

Alan Scott, David Crampton, David Loop, Elizabeth Barton, Erin Mentuch, J. D. Smith, Jean-Paul Kneib, Jeff Julian, Joe Jenson, Joss Bland-Hawthorn, Karl Glazebrook, Matthew Bershady, Mike Gladders, Neil Rowlands, Nick Raines, Rene Doyon, Roberto Abraham, Roger Julian, Steve Eikenberry

arxiv:0809.0634 v1 · 2008-09-03 · 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{J43UTZ47LOCFAFEUAU6FAO6NPJ}

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	2026-07-04T17:12:34.356060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f3749e79f5b84501494053c503bcd7a74a211124d6f6767bfd25db182a25d20

Aliases

arxiv: 0809.0634 · arxiv_version: 0809.0634v1 · doi: 10.48550/arxiv.0809.0634 · pith_short_12: J43UTZ47LOCF · pith_short_16: J43UTZ47LOCFAFEU · pith_short_8: J43UTZ47

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/J43UTZ47LOCFAFEUAU6FAO6NPJ \
  | 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: 4f3749e79f5b84501494053c503bcd7a74a211124d6f6767bfd25db182a25d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "173802e3dba69ae7b533bb5999aea3442fee2afc418ae9491659e339b73b77a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-03T14:43:45Z",
    "title_canon_sha256": "f677b3c36c106ce0c7a9c67eb531b0be2d24172d023d88edd43a199213bad28b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0634",
    "kind": "arxiv",
    "version": 1
  }
}