Pith Number

pith:D3UN2AH3

pith:2011:D3UN2AH3VBORGSSU4QJASWV7BO

not attested not anchored not stored refs pending

Extension of the critical inclination

Hexi Baoyin, XiaoDong Liu, Xingrui Ma

arxiv:1108.4639 v1 · 2011-08-23 · astro-ph.EP · physics.space-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{D3UN2AH3VBORGSSU4QJASWV7BO}

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	2026-05-18T04:14:54.047178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee8dd00fba85d134a54e412095abf0b9d014f9d5a5258eade0976443372c846

Aliases

arxiv: 1108.4639 · arxiv_version: 1108.4639v1 · doi: 10.48550/arxiv.1108.4639 · pith_short_12: D3UN2AH3VBOR · pith_short_16: D3UN2AH3VBORGSSU · pith_short_8: D3UN2AH3

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/D3UN2AH3VBORGSSU4QJASWV7BO \
  | 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: 1ee8dd00fba85d134a54e412095abf0b9d014f9d5a5258eade0976443372c846

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e129679526b58db55e2bc69b5aff3bd3e59d2776a43d2f80419379c15654565f",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-08-23T15:50:22Z",
    "title_canon_sha256": "b24c0ced9f5dc8f60208a45aebde8c1180fd8e9daf207bb3bde807d73eeb1dfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4639",
    "kind": "arxiv",
    "version": 1
  }
}