Pith Number

pith:25Q5U2TK

pith:2020:25Q5U2TKGDUGMZ7ZV46WYVG7PX

not attested not anchored not stored refs pending

Architecture of three-planet systems predicted from the observed protoplanetary disk of HL Tau

Kazuhiro D. Kanagawa, Shijie Wang, Toshinori Hayashi, Yasushi Suto

arxiv:2002.08036 v1 · 2020-02-19 · 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{25Q5U2TKGDUGMZ7ZV46WYVG7PX}

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	2026-07-05T00:49:01.618114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d761da6a6a30e86667f9af3d6c54df7dec3d265269e1ae6ea1f9805d44cc2201

Aliases

arxiv: 2002.08036 · arxiv_version: 2002.08036v1 · doi: 10.48550/arxiv.2002.08036 · pith_short_12: 25Q5U2TKGDUG · pith_short_16: 25Q5U2TKGDUGMZ7Z · pith_short_8: 25Q5U2TK

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/25Q5U2TKGDUGMZ7ZV46WYVG7PX \
  | 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: d761da6a6a30e86667f9af3d6c54df7dec3d265269e1ae6ea1f9805d44cc2201

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "151baff65ad19ee2ea498bb2bee11b5296edff77429b89694c254f53419daac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2020-02-19T07:30:06Z",
    "title_canon_sha256": "b20b0bb09855b034295598dbf79b6c650d2402f06f0022603525a5a36e5d22a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08036",
    "kind": "arxiv",
    "version": 1
  }
}