Pith Number

pith:WZ5J3M4W

pith:2018:WZ5J3M4WYD6LVUCTGSYP2AC4NF

not attested not anchored not stored refs pending

A Survey of Mobile Computing for the Visually Impaired

Chris Pal, Joseph Paul Cohen, Margaux Luck, Martin Weiss, Roger Girgis

arxiv:1811.10120 v2 · 2018-11-25 · cs.HC · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WZ5J3M4WYD6LVUCTGSYP2AC4NF}

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	2026-05-17T23:59:44.539407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b67a9db396c0fcbad05334b0fd005c694dc46fdeb9366b00005fc0da84809d27

Aliases

arxiv: 1811.10120 · arxiv_version: 1811.10120v2 · doi: 10.48550/arxiv.1811.10120 · pith_short_12: WZ5J3M4WYD6L · pith_short_16: WZ5J3M4WYD6LVUCT · pith_short_8: WZ5J3M4W

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/WZ5J3M4WYD6LVUCTGSYP2AC4NF \
  | 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: b67a9db396c0fcbad05334b0fd005c694dc46fdeb9366b00005fc0da84809d27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64329e6adf757657fd1df9fc3d182f9f6128fda154cf51c6c9f5a69f685b74f3",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2018-11-25T23:58:42Z",
    "title_canon_sha256": "c27402eb00647941d92cae525bff88e70fdf2c509cd3ec37fbb2d18a403c081e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.10120",
    "kind": "arxiv",
    "version": 2
  }
}