Pith Number

pith:5URPF3FD

pith:2019:5URPF3FD3P2ORI5G46ZLI3V7AH

not attested not anchored not stored refs pending

Astro 2020 Science White Paper: Evolved Planetary Systems around White Dwarfs

Amy Bonsor, Andrew Swan, Ben Zuckerman, Beth Klein, Boris Gaensicke, Carl Melis, Christopher Manser, David Wilson, Detlev Koester, Dimitri Veras, Erik Dennihy, Jay Farihi, Jennifer Johnson, John Debes, Juna Kollmeier, Mark Hollands, Martin Barstow, Matthew Hoskin, Matthias Schreiber, Nicola Gentile Fusillo, Odette Toloza, Pablo Rodriguez-Gil, Patrick Dufour, Paula Izquierdo, Pier-Emmanuel Tremblay, Siyi Xu, Tim Cunningham, Wladimir Lyra

arxiv:1904.04839 v2 · 2019-04-09 · 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{5URPF3FD3P2ORI5G46ZLI3V7AH}

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	2026-05-17T23:48:41.548393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed22f2eca3dbf4e8a3a6e7b2b46ebf01d36aa6ee7e65e75d56845e1c6ce39b3a

Aliases

arxiv: 1904.04839 · arxiv_version: 1904.04839v2 · doi: 10.48550/arxiv.1904.04839 · pith_short_12: 5URPF3FD3P2O · pith_short_16: 5URPF3FD3P2ORI5G · pith_short_8: 5URPF3FD

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/5URPF3FD3P2ORI5G46ZLI3V7AH \
  | 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: ed22f2eca3dbf4e8a3a6e7b2b46ebf01d36aa6ee7e65e75d56845e1c6ce39b3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a291e2d07f88520713eb4d78b48452a361c7c4fdc933612801390e75c42cfd9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-04-09T18:00:04Z",
    "title_canon_sha256": "d7d540170cbb83af4003e6aec8298cd761600f9f7642adf76b7d08a88a1403f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04839",
    "kind": "arxiv",
    "version": 2
  }
}