Pith Number

pith:UO7X5B3F

pith:2019:UO7X5B3FVK4UGIKG5MUTJQJ7BJ

not attested not anchored not stored refs pending

Discovery of a second pulsating intermediate helium-enriched sdOB star

E. M. Green, G. Fontaine, M. Latour

arxiv:1903.03444 v1 · 2019-03-08 · 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{UO7X5B3FVK4UGIKG5MUTJQJ7BJ}

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	2026-05-17T23:50:07.889783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3bf7e8765aab9432146eb2934c13f0a78563f3863f6a0c148990c5817c4aaf4

Aliases

arxiv: 1903.03444 · arxiv_version: 1903.03444v1 · doi: 10.48550/arxiv.1903.03444 · pith_short_12: UO7X5B3FVK4U · pith_short_16: UO7X5B3FVK4UGIKG · pith_short_8: UO7X5B3F

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/UO7X5B3FVK4UGIKG5MUTJQJ7BJ \
  | 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: a3bf7e8765aab9432146eb2934c13f0a78563f3863f6a0c148990c5817c4aaf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "606f75b8cff47a7fea35d8a53971940c66a167004f4936bd0ad68089087c1cf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-08T13:49:27Z",
    "title_canon_sha256": "d6efade73b71c77fb0007a2181c17f34b44704b26bf42ad37c75b1f8cbeb3e54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03444",
    "kind": "arxiv",
    "version": 1
  }
}