Pith Number

pith:AS2MTR7U

pith:2015:AS2MTR7UMI3Q42OEEBZ4FTQIIG

not attested not anchored not stored refs pending

A game-based educational method relying on student-generated questions

Enrique Abad, Julia Gil, Pilar Su\'arez

arxiv:1501.06439 v3 · 2015-01-26 · 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{AS2MTR7UMI3Q42OEEBZ4FTQIIG}

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	2026-05-17T23:56:00.973760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04b4c9c7f462370e69c42073c2ce0841b883bade64462983072d8c093ab13bf8

Aliases

arxiv: 1501.06439 · arxiv_version: 1501.06439v3 · doi: 10.48550/arxiv.1501.06439 · pith_short_12: AS2MTR7UMI3Q · pith_short_16: AS2MTR7UMI3Q42OE · pith_short_8: AS2MTR7U

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/AS2MTR7UMI3Q42OEEBZ4FTQIIG \
  | 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: 04b4c9c7f462370e69c42073c2ce0841b883bade64462983072d8c093ab13bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e9a7cc457aff36930971b30f161873dc92cbb77ef92fcc840d3df47c7673d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-01-26T15:19:25Z",
    "title_canon_sha256": "d870fb79f9057366870809079135305f03f3f11b500c82c0c965c38129cdca12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06439",
    "kind": "arxiv",
    "version": 3
  }
}