Pith Number

pith:F5IHQJGA

pith:2011:F5IHQJGAKJJS2CTPJYRDYW4XMR

not attested not anchored not stored refs pending

The Stability of The Longley-Rice Irregular Terrain Model for Typical Problems

Caleb Phillips, Dirk Grunwald, Douglas Sicker

arxiv:1109.1843 v1 · 2011-09-08 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5IHQJGAKJJS2CTPJYRDYW4XMR}

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	2026-05-18T04:13:46.659359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f507824c052532d0a6f4e223c5b976451eeee984c8cf0a112b9db597394b20b

Aliases

arxiv: 1109.1843 · arxiv_version: 1109.1843v1 · doi: 10.48550/arxiv.1109.1843 · pith_short_12: F5IHQJGAKJJS · pith_short_16: F5IHQJGAKJJS2CTP · pith_short_8: F5IHQJGA

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/F5IHQJGAKJJS2CTPJYRDYW4XMR \
  | 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: 2f507824c052532d0a6f4e223c5b976451eeee984c8cf0a112b9db597394b20b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c408063cdc4d9b5567ea573c0f57e8aab01ddb0acae0b534dfd2d25cff69a32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2011-09-08T20:43:02Z",
    "title_canon_sha256": "db711d8a800e56de74f833684c5f0497a296732e1188a588b24d2d432666c1c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1843",
    "kind": "arxiv",
    "version": 1
  }
}