Pith Number

pith:D2KIU64L

pith:1997:D2KIU64LMAGTQESDVMGVKEBERJ

not attested not anchored not stored refs pending

A search for hidden white dwarfs in the ROSAT EUV survey

Martin Barstow (XRA Astronomy Group, Matt Burleigh, Tom Fleming (Steward Observatory, UK), University of Arizona), University of Leicester

arxiv:astro-ph/9701107 v1 · 1997-01-16 · 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{D2KIU64LMAGTQESDVMGVKEBERJ}

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	2026-05-18T01:40:18.338917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e948a7b8b600d381243ab0d5510248a580ddc6b29496bc5b5d38116a27846b1

Aliases

arxiv: astro-ph/9701107 · arxiv_version: astro-ph/9701107v1 · doi: 10.48550/arxiv.astro-ph/9701107 · pith_short_12: D2KIU64LMAGT · pith_short_16: D2KIU64LMAGTQESD · pith_short_8: D2KIU64L

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/D2KIU64LMAGTQESDVMGVKEBERJ \
  | 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: 1e948a7b8b600d381243ab0d5510248a580ddc6b29496bc5b5d38116a27846b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab5f2598d8dd1f0da3c952e9e68a0b2bff19fac93258706d63a53a78a0cedb9c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-16T15:11:32Z",
    "title_canon_sha256": "2218ccac4b1f619996985474d23835dbd1f9a7f0a8709fd38d84e80f353e2701"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701107",
    "kind": "arxiv",
    "version": 1
  }
}