Pith Number

pith:L6XLWECI

pith:2010:L6XLWECIG5MK62WB2JFCN72RYK

not attested not anchored not stored refs pending

The Archaeo-Astronomy Project -- Supporting the Outdoor Classroom

A. Alder, D. Brown, R. Francis

arxiv:1011.0331 v1 · 2010-11-01 · physics.ed-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{L6XLWECIG5MK62WB2JFCN72RYK}

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	2026-05-18T04:37:23.396089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5faebb10483758af6ac1d24a26ff51c2b8867d228ad83f6ac84fc4d78ba36adf

Aliases

arxiv: 1011.0331 · arxiv_version: 1011.0331v1 · doi: 10.48550/arxiv.1011.0331 · pith_short_12: L6XLWECIG5MK · pith_short_16: L6XLWECIG5MK62WB · pith_short_8: L6XLWECI

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/L6XLWECIG5MK62WB2JFCN72RYK \
  | 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: 5faebb10483758af6ac1d24a26ff51c2b8867d228ad83f6ac84fc4d78ba36adf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cf18b5e79d1dfe6dba9c5afbd69b4419f6911432d4e486ce8430ce012a6acc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2010-11-01T14:26:29Z",
    "title_canon_sha256": "126e6cb51edef686df0829405839e530dff80a3297d53803c525b5d81b6a535b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.0331",
    "kind": "arxiv",
    "version": 1
  }
}