Pith Number

pith:3UQK3J24

pith:2010:3UQK3J24LNCTOSYZFGSIDIMPHY

not attested not anchored not stored refs pending

Investigation carried out with pre-service elementary teachers on some basic astronomical topics

Alejandro Gangui, Cynthia Quinteros, Maria Iglesias

arxiv:1007.0947 v1 · 2010-07-06 · physics.ed-ph · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UQK3J24LNCTOSYZFGSIDIMPHY}

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	2026-05-18T02:33:09.621479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd20ada75c5b45374b1929a481a18f3e2386b620743564afe2cab9f6b6a1f5ce

Aliases

arxiv: 1007.0947 · arxiv_version: 1007.0947v1 · doi: 10.48550/arxiv.1007.0947 · pith_short_12: 3UQK3J24LNCT · pith_short_16: 3UQK3J24LNCTOSYZ · pith_short_8: 3UQK3J24

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/3UQK3J24LNCTOSYZFGSIDIMPHY \
  | 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: dd20ada75c5b45374b1929a481a18f3e2386b620743564afe2cab9f6b6a1f5ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10f134989d9d50c6eec420855aca9343d85035f8ea732405c88f2fa68941f6e5",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2010-07-06T16:38:43Z",
    "title_canon_sha256": "a07e222ca01e2b3df6f30064beff537b5f74652f6910b1981ec18c56eff6f560"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0947",
    "kind": "arxiv",
    "version": 1
  }
}