Pith Number

pith:TCZJHQM2

pith:2015:TCZJHQM27IIVNCZVAHF53OVJLG

not attested not anchored not stored refs pending

Hubble Space Telescope ultraviolet spectroscopy of the hottest known helium-rich pre-white dwarf KPD0005+5106

K. Werner, T. Rauch

arxiv:1509.08938 v2 · 2015-09-29 · 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{TCZJHQM27IIVNCZVAHF53OVJLG}

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	2026-05-18T01:26:41.304854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98b293c19afa11568b3501cbddbaa95989f793d895d13bda145cdb5803672a4d

Aliases

arxiv: 1509.08938 · arxiv_version: 1509.08938v2 · doi: 10.48550/arxiv.1509.08938 · pith_short_12: TCZJHQM27IIV · pith_short_16: TCZJHQM27IIVNCZV · pith_short_8: TCZJHQM2

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/TCZJHQM27IIVNCZVAHF53OVJLG \
  | 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: 98b293c19afa11568b3501cbddbaa95989f793d895d13bda145cdb5803672a4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41b048ba351545eff6c15e49ce502833647e9b36a3f5924c9851870824f11567",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-29T20:16:28Z",
    "title_canon_sha256": "ecacb35f75b32dcf48edfe02d96cf76884ff83d85877a3b4178a47647df3ad98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08938",
    "kind": "arxiv",
    "version": 2
  }
}