Pith Number

pith:ISBCLG35

pith:1999:ISBCLG35M7GFYERB6XMKCLTFRN

not attested not anchored not stored refs pending

Perihelion Concentration of Comets I. Discussion of the Published Methods

Jozef Klacka

arxiv:astro-ph/9910047 v1 · 1999-10-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISBCLG35M7GFYERB6XMKCLTFRN}

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	2026-05-18T01:07:35.994838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4482259b7d67cc5c1221f5d8a12e658b460df1e25a77ce307cdeee377690c289

Aliases

arxiv: astro-ph/9910047 · arxiv_version: astro-ph/9910047v1 · doi: 10.48550/arxiv.astro-ph/9910047 · pith_short_12: ISBCLG35M7GF · pith_short_16: ISBCLG35M7GFYERB · pith_short_8: ISBCLG35

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/ISBCLG35M7GFYERB6XMKCLTFRN \
  | 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: 4482259b7d67cc5c1221f5d8a12e658b460df1e25a77ce307cdeee377690c289

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23f22a06fb0ab35d3eadd7023d94b87a59e106a8897389c8b0f4b4b522e3b27",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-04T08:50:45Z",
    "title_canon_sha256": "228b86f8b250205117572f244af85bbfbaca6173c55d94d2f12f818ce283af34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910047",
    "kind": "arxiv",
    "version": 1
  }
}