Pith Number

pith:WY7VNKP4

pith:2017:WY7VNKP4BYXUYNQBY5WIY6BKKB

not attested not anchored not stored refs pending

Transforming face-to-face identity proofing into anonymous digital identity using the Bitcoin blockchain

Daniel Augot (GRACE, Herv\'e Chabanne, Inria, INRIA), LIX), Olivier Cl\'emot, William George (LIX

arxiv:1710.02951 v1 · 2017-10-09 · cs.CR · 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{WY7VNKP4BYXUYNQBY5WIY6BKKB}

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	2026-05-18T00:33:28.377072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b63f56a9fc0e2f4c3601c76c8c782a5065238aa21cd2bc4feb259168b25c610c

Aliases

arxiv: 1710.02951 · arxiv_version: 1710.02951v1 · doi: 10.48550/arxiv.1710.02951 · pith_short_12: WY7VNKP4BYXU · pith_short_16: WY7VNKP4BYXUYNQB · pith_short_8: WY7VNKP4

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/WY7VNKP4BYXUYNQBY5WIY6BKKB \
  | 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: b63f56a9fc0e2f4c3601c76c8c782a5065238aa21cd2bc4feb259168b25c610c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368dfe1e52274c6aaee2d29b3c579cd79e7934deeff5c486de4be59808710482",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-10-09T06:19:07Z",
    "title_canon_sha256": "f11a56f77c63fd862f9411a6845b18590aed2b3901cdd1ab582f119e3431a8b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02951",
    "kind": "arxiv",
    "version": 1
  }
}