Pith Number

pith:QUWHOY3E

pith:2014:QUWHOY3EJ5RQNRVEWI654DN7PH

not attested not anchored not stored refs pending

Chaotic Dynamics of Comet 1P/Halley; Lyapunov Exponent and Survival Time Expectancy

B. Pichardo, M. A. Mu\~noz-Guti\'errez, M. Reyes-Ruiz

arxiv:1409.7762 v2 · 2014-09-27 · 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{QUWHOY3EJ5RQNRVEWI654DN7PH}

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	2026-05-18T01:41:54.763120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

852c7763644f6306c6a4b23dde0dbf79f88cc0ae1dc770ab53beedac1d6fcb4d

Aliases

arxiv: 1409.7762 · arxiv_version: 1409.7762v2 · doi: 10.48550/arxiv.1409.7762 · pith_short_12: QUWHOY3EJ5RQ · pith_short_16: QUWHOY3EJ5RQNRVE · pith_short_8: QUWHOY3E

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/QUWHOY3EJ5RQNRVEWI654DN7PH \
  | 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: 852c7763644f6306c6a4b23dde0dbf79f88cc0ae1dc770ab53beedac1d6fcb4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e967f9631dfe967808ba68354d1a7273217d529da6161a7424961a1f9bb4c2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-09-27T04:51:56Z",
    "title_canon_sha256": "cadf5209a640eb342bea2ce72fd204d21fc2d6f9e3bb1cdb155e197a8616c3bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7762",
    "kind": "arxiv",
    "version": 2
  }
}