Pith Number

pith:33WCI5WE

pith:2025:33WCI5WETMQY57VEX4S4DBLRRP

not attested not anchored not stored refs pending

Constraints on the ejecting-crust activity model on comet 67P/Churyumov-Gerasimenko

Bastian Gundlach, Christian Schuckart, Dorothea Bischoff, Johannes Markkanen, Jurgen Blum, Nicholas Attree, Pedro Guti\'errez, Yingqi Xin, Yuri Skorov

arxiv:2507.01441 v1 · 2025-07-02 · 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{33WCI5WETMQY57VEX4S4DBLRRP}

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	2026-07-05T11:30:48.848537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deec2476c49b218efea4bf25c185718bf0187784d77f25dbe1929c7ddf1a43ee

Aliases

arxiv: 2507.01441 · arxiv_version: 2507.01441v1 · doi: 10.48550/arxiv.2507.01441 · pith_short_12: 33WCI5WETMQY · pith_short_16: 33WCI5WETMQY57VE · pith_short_8: 33WCI5WE

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/33WCI5WETMQY57VEX4S4DBLRRP \
  | 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: deec2476c49b218efea4bf25c185718bf0187784d77f25dbe1929c7ddf1a43ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce26362151f9b2b5a94d3b3c3406c171ab08e73ba151c8cab9eea4b4bf191121",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-07-02T07:57:54Z",
    "title_canon_sha256": "5b69e2ba35415843f3fb68e3c6bdb1a5fb296c72879d7b33696db508dbada213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.01441",
    "kind": "arxiv",
    "version": 1
  }
}