Pith Number

pith:SCNNYFEP

pith:2006:SCNNYFEPHWFCXH3YAU7Z6A2YGV

not attested not anchored not stored refs pending

A Hot DQ White Dwarf in the Open Star Cluster M35

(2) UCO/Lick Observatory), James Liebert (1), Kurtis A. Williams (1), Michael Bolte (2), Robert B. Hanson (2) ((1) Steward Observatory

arxiv:astro-ph/0604419 v1 · 2006-04-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SCNNYFEPHWFCXH3YAU7Z6A2YGV}

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	2026-05-18T02:40:25.343256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

909adc148f3d8a2b9f78053f9f0358355647c42bad8bab0d06fa46f2b56213dd

Aliases

arxiv: astro-ph/0604419 · arxiv_version: astro-ph/0604419v1 · doi: 10.48550/arxiv.astro-ph/0604419 · pith_short_12: SCNNYFEPHWFC · pith_short_16: SCNNYFEPHWFCXH3Y · pith_short_8: SCNNYFEP

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/SCNNYFEPHWFCXH3YAU7Z6A2YGV \
  | 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: 909adc148f3d8a2b9f78053f9f0358355647c42bad8bab0d06fa46f2b56213dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "065cc23f6801d51ca18cccb1c78846d498c96c3148d9bebb9f5ddd94386f0a07",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-20T00:15:49Z",
    "title_canon_sha256": "f2ebf72f943e2ad791714f11aeaa0162847c9c8ec954de618bf1e1f8266dc6e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604419",
    "kind": "arxiv",
    "version": 1
  }
}