Pith Number

pith:ZDFWWOD5

pith:2009:ZDFWWOD5Q5R2B4P6LA33XHT2A2

not attested not anchored not stored refs pending

TT Arietis - Observations of a Cataclysmic Variable Star with the MOST Space Telescope

A.Moffat, D.Sasselov, G.Kleinschuster, J.M.Matthews, J.Weingrill, R.Kuschnig, S.Rucinski, W.W.Weiss

arxiv:0906.4180 v1 · 2009-06-23 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDFWWOD5Q5R2B4P6LA33XHT2A2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:13.227793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8cb6b387d8763a0f1fe5837bb9e7a069648e878b137b7b2219e9d9b2fc957f1

Aliases

arxiv: 0906.4180 · arxiv_version: 0906.4180v1 · doi: 10.48550/arxiv.0906.4180 · pith_short_12: ZDFWWOD5Q5R2 · pith_short_16: ZDFWWOD5Q5R2B4P6 · pith_short_8: ZDFWWOD5

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/ZDFWWOD5Q5R2B4P6LA33XHT2A2 \
  | 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: c8cb6b387d8763a0f1fe5837bb9e7a069648e878b137b7b2219e9d9b2fc957f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e05aa9c993e8b2fcdcc583def4d84f3c1ff446eded087eebfc0e61bd502bdada",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-06-23T07:20:02Z",
    "title_canon_sha256": "05740669a5a8832e185aba633742387ca20481d0077df33ced6816e8fd0c60c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4180",
    "kind": "arxiv",
    "version": 1
  }
}