Pith Number

pith:5XUGSPU4

pith:2009:5XUGSPU4Q7T6W7TOSRSEQGH5VW

not attested not anchored not stored refs pending

Observations of three pre-cataclysmic variables from the Edinburgh-Cape Blue Object Survey

B. T. Gaensicke, C. Papadaki, C. Tappert, I. Toledo, J. Southworth, M. Zorotovic, R. E. Mennickent

arxiv:0908.1078 v1 · 2009-08-07 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5XUGSPU4Q7T6W7TOSRSEQGH5VW}

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	2026-05-18T02:12:36.639441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede8693e9c87e7eb7e6e94644818fdad9ec23a6a058a3fa9033f5098b79d2feb

Aliases

arxiv: 0908.1078 · arxiv_version: 0908.1078v1 · doi: 10.48550/arxiv.0908.1078 · pith_short_12: 5XUGSPU4Q7T6 · pith_short_16: 5XUGSPU4Q7T6W7TO · pith_short_8: 5XUGSPU4

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/5XUGSPU4Q7T6W7TOSRSEQGH5VW \
  | 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: ede8693e9c87e7eb7e6e94644818fdad9ec23a6a058a3fa9033f5098b79d2feb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "031682bb56cb18eb22a452275badbfbc2c0e33436204f1bc57b205e5e1b00641",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-07T15:47:10Z",
    "title_canon_sha256": "3977cefbb12dbe79ef69b94623f924ea97002b9925df8b559de509832aa6dcd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1078",
    "kind": "arxiv",
    "version": 1
  }
}