Pith Number

pith:UPRNCM3D

pith:2012:UPRNCM3DCL3ZL3NFIOO24BJGCE

not attested not anchored not stored refs pending

Active and Cooperative Learning Paths in the Pigelleto's Summer School of Physics

Antonella Porri, Emilio Mariotti, Roberto Benedetti, Vera Montalbano

arxiv:1201.1333 v1 · 2012-01-06 · physics.ed-ph · physics.pop-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{UPRNCM3DCL3ZL3NFIOO24BJGCE}

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	2026-05-18T03:10:58.547752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e2d1336312f795eda5439dae0526112ee384245104ce0c839cb16457c6379e

Aliases

arxiv: 1201.1333 · arxiv_version: 1201.1333v1 · doi: 10.48550/arxiv.1201.1333 · pith_short_12: UPRNCM3DCL3Z · pith_short_16: UPRNCM3DCL3ZL3NF · pith_short_8: UPRNCM3D

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/UPRNCM3DCL3ZL3NFIOO24BJGCE \
  | 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: a3e2d1336312f795eda5439dae0526112ee384245104ce0c839cb16457c6379e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79eb150d8d72c07978ad2bcdaee39e5260759f4f5a2a7b182e9772ea0e023cd9",
    "cross_cats_sorted": [
      "physics.pop-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-01-06T01:58:22Z",
    "title_canon_sha256": "c9b57155556adbfd226bda6d2a5e27507a7bd9de1917ff223fe00914ebe0ce10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1333",
    "kind": "arxiv",
    "version": 1
  }
}