Pith Number

pith:S3AXVUYM

pith:2012:S3AXVUYMJS4VIQIVJOXVWLILNM

not attested not anchored not stored refs pending

Attempts of Transforming Teacher Practice Through Professional Development

Antonella Porri, Emilio Mariotti, Maria Alessandra Mariotti, Roberto Benedetti, Vera Montalbano

arxiv:1212.1042 v1 · 2012-12-05 · 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{S3AXVUYMJS4VIQIVJOXVWLILNM}

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	2026-05-18T01:23:17.080903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c17ad30c4cb95441154baf5b2d0b6b2f0e712381e7053303f53e531cecbe8f

Aliases

arxiv: 1212.1042 · arxiv_version: 1212.1042v1 · doi: 10.48550/arxiv.1212.1042 · pith_short_12: S3AXVUYMJS4V · pith_short_16: S3AXVUYMJS4VIQIV · pith_short_8: S3AXVUYM

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/S3AXVUYMJS4VIQIVJOXVWLILNM \
  | 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: 96c17ad30c4cb95441154baf5b2d0b6b2f0e712381e7053303f53e531cecbe8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42e798e0e7ec28ef1e4fb3731917e20dba692b1da0f95ebf62a1f0b0439d961d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-12-05T15:01:06Z",
    "title_canon_sha256": "da8a9b1b5e549d1f2f574fc925d8e6e5cb1e7c5b05cf3ff9c8d3c3de7e149114"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1042",
    "kind": "arxiv",
    "version": 1
  }
}