Pith Number

pith:3X5EHWPO

pith:2026:3X5EHWPOVIB7MNIQ3LH4K5RV7I

not attested not anchored not stored refs pending

Multi-night photometric repeatability of STDWeb: an empirical error budget from a 14-night campaign on a single field

Pierre-Yves Lechapelain

arxiv:2608.10017 v1 · 2026-08-08 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3X5EHWPOVIB7MNIQ3LH4K5RV7I}

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	2026-08-12T00:22:36.434958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddfa43d9eeaa03f63510dacfc57635fa139dad2746a2c3b789098ce6c26d8fd0

Aliases

arxiv: 2608.10017 · arxiv_version: 2608.10017v1 · doi: 10.48550/arxiv.2608.10017 · pith_short_12: 3X5EHWPOVIB7 · pith_short_16: 3X5EHWPOVIB7MNIQ · pith_short_8: 3X5EHWPO

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/3X5EHWPOVIB7MNIQ3LH4K5RV7I \
  | 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: ddfa43d9eeaa03f63510dacfc57635fa139dad2746a2c3b789098ce6c26d8fd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3134171ad44310138c04c16cfd238e6070ec1b3e953525058492ff99414a0f57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-08-08T19:52:38Z",
    "title_canon_sha256": "2951b0f1df4193d842023f91ebf99e6973bae1054c5daffaa9c1062bffc4836e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.10017",
    "kind": "arxiv",
    "version": 1
  }
}