Pith Number

pith:GYKVWNKZ

pith:2026:GYKVWNKZGSUPSB7RTNBZ7WEEDU

not attested not anchored not stored refs pending

Send and Pretend: Exploiting Transcript Consistency Issues in End-to-End Encrypted Group Chats

Aljosha Judmayer, David Schmidt, Gabriel K. Gegenhuber, Matth\"aus Wininger, Maximilian G\"unther, Moritz Grefner

arxiv:2607.27510 v1 · 2026-07-29 · 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{GYKVWNKZGSUPSB7RTNBZ7WEEDU}

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	2026-07-31T01:24:42.626360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

36155b355934a8f907f19b439fd8841d042ab40d3c87fb66341dec6a67212a10

Aliases

arxiv: 2607.27510 · arxiv_version: 2607.27510v1 · doi: 10.48550/arxiv.2607.27510 · pith_short_12: GYKVWNKZGSUP · pith_short_16: GYKVWNKZGSUPSB7R · pith_short_8: GYKVWNKZ

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/GYKVWNKZGSUPSB7RTNBZ7WEEDU \
  | 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: 36155b355934a8f907f19b439fd8841d042ab40d3c87fb66341dec6a67212a10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0737976d8bf8c8ccfdc913b5ea2c4645f25ed70889eb06c4be6b262620cda58f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-29T22:54:21Z",
    "title_canon_sha256": "562111475a7e38f284d217a88f38578689ce9da97d70f94bd42e15b246552b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27510",
    "kind": "arxiv",
    "version": 1
  }
}