Pith Number

pith:FQLELL6H

pith:2019:FQLELL6HJCO7BYFEULSKUGDLXE

not attested not anchored not stored refs pending

Fundamental Limits of Private User Authentication

Mahtab Mirmohseni, Mohammad Reza Aref, Narges Kazempour

arxiv:1901.05927 v5 · 2019-01-17 · 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{FQLELL6HJCO7BYFEULSKUGDLXE}

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	2026-07-05T04:56:08.370306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c1645afc7489df0e0a4a2e4aa186bb9248179f8ca275b62521a726cc5c3374d

Aliases

arxiv: 1901.05927 · arxiv_version: 1901.05927v5 · doi: 10.48550/arxiv.1901.05927 · pith_short_12: FQLELL6HJCO7 · pith_short_16: FQLELL6HJCO7BYFE · pith_short_8: FQLELL6H

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/FQLELL6HJCO7BYFEULSKUGDLXE \
  | 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: 2c1645afc7489df0e0a4a2e4aa186bb9248179f8ca275b62521a726cc5c3374d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8843b4585728ff743c8323ed18dc17e49e37bf23abb8a0f42e57162503485a8",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-01-17T17:50:13Z",
    "title_canon_sha256": "f6051f2617c2dd939cb6bb7736a484189befa2bc417bb129349a18eb765c6d07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05927",
    "kind": "arxiv",
    "version": 5
  }
}