Pith Number

pith:33BOT75E

pith:2014:33BOT75EM4B7OM56AV7KLZCFKM

not attested not anchored not stored refs pending

Stories from the Sky: Astronomy in Indigenous Knowledge

Duane W. Hamacher

arxiv:1412.5580 v1 · 2014-12-16 · 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{33BOT75EM4B7OM56AV7KLZCFKM}

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	2026-05-18T02:31:02.717624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dec2e9ffa46703f733be057ea5e445531d3968f4515877cbef2c84fb9c24d3c6

Aliases

arxiv: 1412.5580 · arxiv_version: 1412.5580v1 · doi: 10.48550/arxiv.1412.5580 · pith_short_12: 33BOT75EM4B7 · pith_short_16: 33BOT75EM4B7OM56 · pith_short_8: 33BOT75E

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/33BOT75EM4B7OM56AV7KLZCFKM \
  | 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: dec2e9ffa46703f733be057ea5e445531d3968f4515877cbef2c84fb9c24d3c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4d2649b188f803e4098c289accc128be25ddf04f8a7b40635d6fc0cb25caa4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-12-16T00:45:31Z",
    "title_canon_sha256": "d8cc409b0b092bc5062e7ee8e1f37c1870a1550af15622232158dc669bcb786e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5580",
    "kind": "arxiv",
    "version": 1
  }
}