Pith Number

pith:JLNDHJIG

pith:2007:JLNDHJIG2WYRWYO6WNZS4XVPBA

not attested not anchored not stored refs pending

ULTRACAM: an ultra-fast, triple-beam CCD camera for high-speed astrophysics

A. J. A. Vick, C. J. Tierney, D. C. Atkinson, D. J. Ives, D. W. Lunney, E. T. Harlaftis, J. Kelly, K. O'Brien, M. J. Stevenson, P. Kerry, P. T. Peacocke, R. Nicholson, R. Pashley, S. A. McLay, S. M. Beard, S. P. Littlefair, T. R. Marsh, V. S. Dhillon

arxiv:0704.2557 v1 · 2007-04-19 · 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{JLNDHJIG2WYRWYO6WNZS4XVPBA}

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	2026-07-04T15:44:15.487260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ada33a506d5b11b61deb3732e5eaf080414a1dd81efe07b9d26d94627922cda

Aliases

arxiv: 0704.2557 · arxiv_version: 0704.2557v1 · doi: 10.48550/arxiv.0704.2557 · pith_short_12: JLNDHJIG2WYR · pith_short_16: JLNDHJIG2WYRWYO6 · pith_short_8: JLNDHJIG

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/JLNDHJIG2WYRWYO6WNZS4XVPBA \
  | 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: 4ada33a506d5b11b61deb3732e5eaf080414a1dd81efe07b9d26d94627922cda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "280cc81371e7e07d724a58a41b500c9959529ee7f1d2efd07c3faf6d05a9001f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-19T15:15:48Z",
    "title_canon_sha256": "e82e0a2f6391bba0b3b4ad00b716072e132fcb6411745efe163f3778fc2e0ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2557",
    "kind": "arxiv",
    "version": 1
  }
}