Pith Number

pith:GCK2R7UL

pith:2019:GCK2R7ULKE6J6BCRIICB5R2THV

not attested not anchored not stored refs pending

Most white dwarfs with detectable dust discs show infrared variability

Andrew Swan, Jay Farihi, Thomas G. Wilson

arxiv:1901.09468 v1 · 2019-01-28 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GCK2R7ULKE6J6BCRIICB5R2THV}

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	2026-05-17T23:54:15.132411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3095a8fe8b513c9f045142041ec7533d7dd5ba3a75ca6bdd1c2930f79e70c3b9

Aliases

arxiv: 1901.09468 · arxiv_version: 1901.09468v1 · doi: 10.48550/arxiv.1901.09468 · pith_short_12: GCK2R7ULKE6J · pith_short_16: GCK2R7ULKE6J6BCR · pith_short_8: GCK2R7UL

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/GCK2R7ULKE6J6BCRIICB5R2THV \
  | 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: 3095a8fe8b513c9f045142041ec7533d7dd5ba3a75ca6bdd1c2930f79e70c3b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b973d6125e4685ee8a5d05e56e7594389399aac0c7b126afaf3d4865239ca8",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-28T00:15:49Z",
    "title_canon_sha256": "6cb67f4db313124662a302836063e2acc198660c622db55abd554e38853330bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09468",
    "kind": "arxiv",
    "version": 1
  }
}