Pith Number

pith:QRCKYBS6

pith:2020:QRCKYBS6TCWRCH5TJVYQYAHAX5

not attested not anchored not stored refs pending

Computability of the Zero-Error Capacity of Noisy Channels

Christian Deppe, Holger Boche

arxiv:2010.06873 v3 · 2020-10-14 · 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{QRCKYBS6TCWRCH5TJVYQYAHAX5}

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	2026-07-05T08:20:20.053762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8444ac065e98ad111fb34d710c00e0bf4f310f3ade410958002854cd6410c288

Aliases

arxiv: 2010.06873 · arxiv_version: 2010.06873v3 · doi: 10.48550/arxiv.2010.06873 · pith_short_12: QRCKYBS6TCWR · pith_short_16: QRCKYBS6TCWRCH5T · pith_short_8: QRCKYBS6

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/QRCKYBS6TCWRCH5TJVYQYAHAX5 \
  | 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: 8444ac065e98ad111fb34d710c00e0bf4f310f3ade410958002854cd6410c288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7d10d9bedc97a867b909cc2f2ee56819ce9280e6522020f9ef69ae7f9e742c2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-10-14T08:30:08Z",
    "title_canon_sha256": "317cc0b55632b8c3c6540693a86fbf864f19d582d0dfe8710aca006bd4e59995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.06873",
    "kind": "arxiv",
    "version": 3
  }
}