Pith Number

pith:F4IESA2U

pith:2026:F4IESA2U5GGF7INBBC2P5644BY

not attested not anchored not stored refs pending

Topological Signatures of Imperial Stress: Persistent Homology of the Eastern Mediterranean Trade Network, 0--400 CE

Carlos Pinedo Guadarrama, David Delepine, Jose de Jesus Bernal Alvarado

arxiv:2605.27200 v1 · 2026-05-26 · physics.soc-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{F4IESA2U5GGF7INBBC2P5644BY}

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	2026-05-27T02:05:47.757040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f10490354e98c5fa1a108b4fefb9c0e03b6c4f3d720f262fa838fe06a131a99

Aliases

arxiv: 2605.27200 · arxiv_version: 2605.27200v1 · doi: 10.48550/arxiv.2605.27200 · pith_short_12: F4IESA2U5GGF · pith_short_16: F4IESA2U5GGF7INB · pith_short_8: F4IESA2U

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/F4IESA2U5GGF7INBBC2P5644BY \
  | 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: 2f10490354e98c5fa1a108b4fefb9c0e03b6c4f3d720f262fa838fe06a131a99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b66dd52720c35f21a43cda8e4749480f54f9d4a1aca10ed3f2eef769a98b268c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2026-05-26T15:54:09Z",
    "title_canon_sha256": "7e474fd09271c17fafcf4767214e866881383da5c8003f73a7834d5b57d9ea5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27200",
    "kind": "arxiv",
    "version": 1
  }
}