Pith Number

pith:DCAZ74V4

pith:2006:DCAZ74V44NITLOEJS2INA2PFTM

not attested not anchored not stored refs pending

Constraining the Adaptive Optics Point-Spread Function in Crowded Fields: Measuring Photometric Aperture Corrections

2), (2) UCLA), Berkeley, Christopher D. Sheehy (1), James R. Graham (1) ((1) University of California, Nate McCrady (1

arxiv:astro-ph/0604551 v1 · 2006-04-26 · 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{DCAZ74V44NITLOEJS2INA2PFTM}

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	2026-05-18T04:36:21.431295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18819ff2bce35135b8899690d069e59b0059ac5bc4df2e5d53678b8dca204b69

Aliases

arxiv: astro-ph/0604551 · arxiv_version: astro-ph/0604551v1 · doi: 10.48550/arxiv.astro-ph/0604551 · pith_short_12: DCAZ74V44NIT · pith_short_16: DCAZ74V44NITLOEJ · pith_short_8: DCAZ74V4

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/DCAZ74V44NITLOEJS2INA2PFTM \
  | 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: 18819ff2bce35135b8899690d069e59b0059ac5bc4df2e5d53678b8dca204b69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f9bbdc0474f1d235e0637bfe40ce6f53d970f24c9547d8e63961a5f3e7b68c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-26T20:00:17Z",
    "title_canon_sha256": "8a84344146aa8bdd2bbbee332fc683f95be7b0f3fb0aeba4fb71e0b8d94f1833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604551",
    "kind": "arxiv",
    "version": 1
  }
}