Pith Number

pith:UITV7D2X

pith:2020:UITV7D2XG7JDL5O35LLJXTQ3LT

not attested not anchored not stored refs pending

Talek: Private Group Messaging with Hidden Access Patterns

Arvind Krishnamurthy, Bryan Parno, Elisaweta Masserova, Irene Zhang, Raymond Cheng, Thomas Anderson, Vipul Goyal, William Scott

arxiv:2001.08250 v3 · 2020-01-22 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UITV7D2XG7JDL5O35LLJXTQ3LT}

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	2026-07-05T01:59:54.723910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2275f8f5737d235f5dbead69bce1b5cc270fe68539da83f1faaa83229ab98e7

Aliases

arxiv: 2001.08250 · arxiv_version: 2001.08250v3 · doi: 10.48550/arxiv.2001.08250 · pith_short_12: UITV7D2XG7JD · pith_short_16: UITV7D2XG7JDL5O3 · pith_short_8: UITV7D2X

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/UITV7D2XG7JDL5O35LLJXTQ3LT \
  | 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: a2275f8f5737d235f5dbead69bce1b5cc270fe68539da83f1faaa83229ab98e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b58daa6ac79eba7e9d427d955549728922da7081b97251cc7806ceff0496f56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2020-01-22T19:49:53Z",
    "title_canon_sha256": "f376596f976efc3ead3b488692da643e06bded935acd496e3df09c973794de17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.08250",
    "kind": "arxiv",
    "version": 3
  }
}