Pith Number

pith:D25ZYELD

pith:2026:D25ZYELDEEZ66WGPGUZNEPZ57V

not attested not anchored not stored refs pending

A Potential Signature of HD 7977's Passage Among Observed Long-Period Comet Orbits

Nathan A. Kaib, Sean N. Raymond

arxiv:2606.25069 v1 · 2026-06-23 · astro-ph.EP · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D25ZYELDEEZ66WGPGUZNEPZ57V}

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	2026-06-25T00:18:16.867899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ebb9c11632133ef58cf3532d23f3dfd7e3c7283684b8c7388c65e174f4b1747

Aliases

arxiv: 2606.25069 · arxiv_version: 2606.25069v1 · doi: 10.48550/arxiv.2606.25069 · pith_short_12: D25ZYELDEEZ6 · pith_short_16: D25ZYELDEEZ66WGP · pith_short_8: D25ZYELD

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/D25ZYELDEEZ66WGPGUZNEPZ57V \
  | 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: 1ebb9c11632133ef58cf3532d23f3dfd7e3c7283684b8c7388c65e174f4b1747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bfed0ba21a8b0c21bb7f0829ec7e7a0b9b49da18ed3237016c8f464fb7a07d8",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-06-23T18:24:02Z",
    "title_canon_sha256": "d63b4c29030c69721481759da5663f5d434af46a7a1a5fbfe7af26e682af25a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25069",
    "kind": "arxiv",
    "version": 1
  }
}