Pith Number

pith:HUDHSSIE

pith:2019:HUDHSSIELSD44CNOPCFEJDX45Y

not attested not anchored not stored refs pending

User-Adaptive Text Entry for Augmentative and Alternative Communication

Deniz Erdogmus, Fernando Quivira, Matt Higger

arxiv:1910.01216 v1 · 2019-10-02 · cs.HC · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUDHSSIELSD44CNOPCFEJDX45Y}

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	2026-07-05T00:09:28.059220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d067949045c87ce09ae788a448efcee0c0bce1a772686bf7b2eb5ee1bec446e

Aliases

arxiv: 1910.01216 · arxiv_version: 1910.01216v1 · doi: 10.48550/arxiv.1910.01216 · pith_short_12: HUDHSSIELSD4 · pith_short_16: HUDHSSIELSD44CNO · pith_short_8: HUDHSSIE

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/HUDHSSIELSD44CNOPCFEJDX45Y \
  | 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: 3d067949045c87ce09ae788a448efcee0c0bce1a772686bf7b2eb5ee1bec446e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "112dfe78f062ce82277f5014865b05258f85b3684d475e8867bec10a01683d86",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-10-02T20:50:24Z",
    "title_canon_sha256": "66bd30bbcf0fcfe6b626ecc5df2e9e65986179da6eddaf7f5841be606bf443d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.01216",
    "kind": "arxiv",
    "version": 1
  }
}