Pith Number

pith:XKCWB7Q2

pith:2014:XKCWB7Q2ZOKUSEOI3XTNPKFNAV

not attested not anchored not stored refs pending

Signs of a faint disc population at polluted white dwarfs

Carolina Bergfors, Jay Farihi, Marco Rocchetto, Patrick Dufour

arxiv:1408.0229 v2 · 2014-08-01 · astro-ph.EP · 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{XKCWB7Q2ZOKUSEOI3XTNPKFNAV}

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	2026-05-18T01:42:26.242328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba8560fe1acb954911c8dde6d7a8ad0544d9c9c568e89a49208137a39415049c

Aliases

arxiv: 1408.0229 · arxiv_version: 1408.0229v2 · doi: 10.48550/arxiv.1408.0229 · pith_short_12: XKCWB7Q2ZOKU · pith_short_16: XKCWB7Q2ZOKUSEOI · pith_short_8: XKCWB7Q2

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/XKCWB7Q2ZOKUSEOI3XTNPKFNAV \
  | 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: ba8560fe1acb954911c8dde6d7a8ad0544d9c9c568e89a49208137a39415049c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4dc1a4d20be7120e1e5e885b7ebe0905337f452f517b1fb0cc0a549c49b4547",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-08-01T16:42:58Z",
    "title_canon_sha256": "709379767ec39f892ee75fa8dbc5117e9cf76364a95440fbbad4aafde95286d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0229",
    "kind": "arxiv",
    "version": 2
  }
}