Pith Number

pith:5MZOCQ4O

pith:2014:5MZOCQ4OWPDMDPLFKYFACYON3I

not attested not anchored not stored refs pending

Dreamtime Astronomy: development of a new Indigenous program at Sydney Observatory

Duane W. Hamacher, Geoffrey Wyatt, Toner Stevenson

arxiv:1405.2506 v1 · 2014-05-11 · physics.ed-ph · physics.hist-ph · 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{5MZOCQ4OWPDMDPLFKYFACYON3I}

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	2026-05-18T02:52:05.378068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb32e1438eb3c6c1bd65560a0161cdda2a2a69bef5f8251313fbe51e8db7f930

Aliases

arxiv: 1405.2506 · arxiv_version: 1405.2506v1 · doi: 10.48550/arxiv.1405.2506 · pith_short_12: 5MZOCQ4OWPDM · pith_short_16: 5MZOCQ4OWPDMDPLF · pith_short_8: 5MZOCQ4O

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/5MZOCQ4OWPDMDPLFKYFACYON3I \
  | 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: eb32e1438eb3c6c1bd65560a0161cdda2a2a69bef5f8251313fbe51e8db7f930

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33af402451dfd12698442742e40784d449e3f277a81681d65a56444a09e77d28",
    "cross_cats_sorted": [
      "physics.hist-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-05-11T07:39:21Z",
    "title_canon_sha256": "f2942ec6a1d23524330ca314b69fc5e9dca90910a0c3601bcf2e0eb7dd682427"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2506",
    "kind": "arxiv",
    "version": 1
  }
}