Pith Number

pith:ESYBZCIV

pith:2011:ESYBZCIV26IZNUYDMZUQYRQZYO

not attested not anchored not stored refs pending

Using Galactic Cepheids to verify Gaia parallaxes

David Hobbs, Fredrik Windmark, Lennart Lindegren

arxiv:1104.2348 v1 · 2011-04-12 · astro-ph.IM · 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{ESYBZCIV26IZNUYDMZUQYRQZYO}

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	2026-05-18T02:02:32.476769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24b01c8915d79196d30366690c4619c3bf9286e523575705bcc7e4d0041b4429

Aliases

arxiv: 1104.2348 · arxiv_version: 1104.2348v1 · doi: 10.48550/arxiv.1104.2348 · pith_short_12: ESYBZCIV26IZ · pith_short_16: ESYBZCIV26IZNUYD · pith_short_8: ESYBZCIV

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/ESYBZCIV26IZNUYDMZUQYRQZYO \
  | 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: 24b01c8915d79196d30366690c4619c3bf9286e523575705bcc7e4d0041b4429

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1010da1fabe717849b8eabcb6b53a319929375f41122e414af3fe6a899241a68",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-04-12T22:32:59Z",
    "title_canon_sha256": "1ab38cec7ac4bcdaafaa5ac53e18e66ca875069e6d977cf0ca3eac21d2565ffe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2348",
    "kind": "arxiv",
    "version": 1
  }
}