Pith Number

pith:PUFKN5DX

pith:2014:PUFKN5DXK6KFFUVCG75LVLXTU4

not attested not anchored not stored refs pending

SPRING: speech and pronunciation improvement through games, for Hispanic children

Anuj Tewari, John Canny, Matthew K Chan, Nitesh Goyal, Tina Yau, Ulrik Schroeder

arxiv:1401.7735 v1 · 2014-01-30 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PUFKN5DXK6KFFUVCG75LVLXTU4}

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	2026-05-17T23:54:27.408940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d0aa6f477579452d2a237fabaaef3a73afcca2473bff6208e55307fc7ea320a

Aliases

arxiv: 1401.7735 · arxiv_version: 1401.7735v1 · doi: 10.48550/arxiv.1401.7735 · pith_short_12: PUFKN5DXK6KF · pith_short_16: PUFKN5DXK6KFFUVC · pith_short_8: PUFKN5DX

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/PUFKN5DXK6KFFUVCG75LVLXTU4 \
  | 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: 7d0aa6f477579452d2a237fabaaef3a73afcca2473bff6208e55307fc7ea320a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a43570a6b50d64becb610397b0af0053e77b761f8f465cd41b2af8ac3ce62562",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2014-01-30T04:50:19Z",
    "title_canon_sha256": "ecf52dfa4d26b57d58c5da0f8d49b04e43ee712a2f2c42d527f0e5a88b161782"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7735",
    "kind": "arxiv",
    "version": 1
  }
}