Pith Number

pith:U4FDCVXP

pith:2018:U4FDCVXPROSTUA2SMPOSIZNOO3

not attested not anchored not stored refs pending

A Proof of Entropy Minimization for Outputs in Deletion Channels via Hidden Word Statistics

Arash Atashpendar, A. W. Roscoe, David Mestel, Peter Y. A. Ryan

arxiv:1807.11609 v1 · 2018-07-30 · cs.IT · cs.DM · 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{U4FDCVXPROSTUA2SMPOSIZNOO3}

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	2026-05-18T00:09:21.621029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70a3156ef8ba53a035263dd2465ae76cd41c39e9f4e4d597f51ac5195c494b1

Aliases

arxiv: 1807.11609 · arxiv_version: 1807.11609v1 · doi: 10.48550/arxiv.1807.11609 · pith_short_12: U4FDCVXPROST · pith_short_16: U4FDCVXPROSTUA2S · pith_short_8: U4FDCVXP

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/U4FDCVXPROSTUA2SMPOSIZNOO3 \
  | 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: a70a3156ef8ba53a035263dd2465ae76cd41c39e9f4e4d597f51ac5195c494b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9798950cc01402a732ae2b925a300a42aa975fd51641ac70d27eba539d5ca445",
    "cross_cats_sorted": [
      "cs.DM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-07-30T23:49:17Z",
    "title_canon_sha256": "75863ff9e98edb8a6072aeac98e951667ca9c2488d24651d9f0917f67a162201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11609",
    "kind": "arxiv",
    "version": 1
  }
}