Pith Number

pith:IJOYZN6C

pith:2008:IJOYZN6C4BDLWVESHEYX7W25ZX

not attested not anchored not stored refs pending

AstraLux - the Calar Alto 2.2-m telescope Lucky Imaging camera

Felix Hormuth, Stefan Hippler, Thomas Henning, Wolfgang Brandner

arxiv:0807.0504 v1 · 2008-07-03 · 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{IJOYZN6C4BDLWVESHEYX7W25ZX}

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	2026-05-18T02:35:15.647396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

425d8cb7c2e046bb549239317fdb5dcdf80ba8769e9732c9d2e81632a36dd808

Aliases

arxiv: 0807.0504 · arxiv_version: 0807.0504v1 · doi: 10.48550/arxiv.0807.0504 · pith_short_12: IJOYZN6C4BDL · pith_short_16: IJOYZN6C4BDLWVES · pith_short_8: IJOYZN6C

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/IJOYZN6C4BDLWVESHEYX7W25ZX \
  | 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: 425d8cb7c2e046bb549239317fdb5dcdf80ba8769e9732c9d2e81632a36dd808

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b7c4d0906119d7b89962735513d0cee81732a5d80f027132bb4e394c73f5a75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-03T08:15:43Z",
    "title_canon_sha256": "909a0c3f6bdd6fa393b032a3ed1268382240040d40fb5f53daadd7ed43d4e3f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0504",
    "kind": "arxiv",
    "version": 1
  }
}