Pith Number

pith:EN3W6ZK2

pith:2019:EN3W6ZK2NDI5WHUAEGVYEEIRPK

not attested not anchored not stored refs pending

29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets

Gal Sarid, Jordan Steckloff, Kathryn Volk, Laura Woodney, Maria Womack, Walter Harris

arxiv:1908.04185 v2 · 2019-08-12 · 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{EN3W6ZK2NDI5WHUAEGVYEEIRPK}

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	2026-07-05T00:08:36.809798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23776f655a68d1db1e8021ab8211117a97d9a3a5d560593c6d8af0d43e83f0e9

Aliases

arxiv: 1908.04185 · arxiv_version: 1908.04185v2 · doi: 10.48550/arxiv.1908.04185 · pith_short_12: EN3W6ZK2NDI5 · pith_short_16: EN3W6ZK2NDI5WHUA · pith_short_8: EN3W6ZK2

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/EN3W6ZK2NDI5WHUAEGVYEEIRPK \
  | 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: 23776f655a68d1db1e8021ab8211117a97d9a3a5d560593c6d8af0d43e83f0e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97edf2adc45c4c56559a85d447e5df985b1c3f503f91cf5f06f41ec063d1c63e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-08-12T14:56:26Z",
    "title_canon_sha256": "f6b1b7d64f7489737eb182c0c5acb0862a274be02667631a78be29343624431c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04185",
    "kind": "arxiv",
    "version": 2
  }
}