Pith Number

pith:6TDLL7WM

pith:2015:6TDLL7WMBBIT7RZKCP6BISIZAC

not attested not anchored not stored refs pending

Why Johnny Still, Still Can't Encrypt: Evaluating the Usability of a Modern PGP Client

Daniel Zappala, Jeff Andersen, Kent Seamons, Scott Ruoti

arxiv:1510.08555 v2 · 2015-10-29 · cs.CR · 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{6TDLL7WMBBIT7RZKCP6BISIZAC}

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	2026-05-18T01:22:53.795263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4c6b5fecc08513fc72a13fc14491900bc09afdec01833e4123e84accf0f491a

Aliases

arxiv: 1510.08555 · arxiv_version: 1510.08555v2 · doi: 10.48550/arxiv.1510.08555 · pith_short_12: 6TDLL7WMBBIT · pith_short_16: 6TDLL7WMBBIT7RZK · pith_short_8: 6TDLL7WM

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/6TDLL7WMBBIT7RZKCP6BISIZAC \
  | 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: f4c6b5fecc08513fc72a13fc14491900bc09afdec01833e4123e84accf0f491a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e680012072f155a79413dea18e635f1ba370bc7ec6311a833137b53f12b3ada3",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-10-29T03:23:55Z",
    "title_canon_sha256": "400af30b83824b97b7bd46ea82d5af3df9711937db02865f5bd063333fe26879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08555",
    "kind": "arxiv",
    "version": 2
  }
}