Pith Number

pith:IIKUIBCE

pith:2009:IIKUIBCENWQNHEZUMMAYLMY4GN

not attested not anchored not stored refs pending

Topography, astronomy and dynastic history in the alignments of the pyramid fields of the Old Kingdom

Giulio Magli

arxiv:0903.1416 v3 · 2009-03-08 · physics.hist-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{IIKUIBCENWQNHEZUMMAYLMY4GN}

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	2026-05-18T04:24:44.047647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42154404446da0d39334630185b31c3353b733850ba5beb44927a581faafffc2

Aliases

arxiv: 0903.1416 · arxiv_version: 0903.1416v3 · doi: 10.48550/arxiv.0903.1416 · pith_short_12: IIKUIBCENWQN · pith_short_16: IIKUIBCENWQNHEZU · pith_short_8: IIKUIBCE

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/IIKUIBCENWQNHEZUMMAYLMY4GN \
  | 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: 42154404446da0d39334630185b31c3353b733850ba5beb44927a581faafffc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0ed763ae9921f6a73892efcca8c6f896ba98200287a823d1cf9df4d2b090f24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2009-03-08T12:44:18Z",
    "title_canon_sha256": "e5af7240b139499fe3d6d59ab7c0eca3be9f1855bef25c9090830e2768d7e93a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1416",
    "kind": "arxiv",
    "version": 3
  }
}