Pith Number

pith:QDGPMFEQ

pith:2013:QDGPMFEQ22RTHP7MGP34FSR77Z

not attested not anchored not stored refs pending

Feedback Communication Systems with Limitations on Incremental Redundancy

Adam R. Williamson, Nambi Seshadri, Richard D. Wesel, Tsung-Yi Chen

arxiv:1309.0707 v1 · 2013-09-03 · 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{QDGPMFEQ22RTHP7MGP34FSR77Z}

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	2026-05-18T03:14:18.276458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80ccf61490d6a333bfec33f7c2ca3ffe43371f3196a1a6f9fe30fb7a2de06fef

Aliases

arxiv: 1309.0707 · arxiv_version: 1309.0707v1 · doi: 10.48550/arxiv.1309.0707 · pith_short_12: QDGPMFEQ22RT · pith_short_16: QDGPMFEQ22RTHP7M · pith_short_8: QDGPMFEQ

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/QDGPMFEQ22RTHP7MGP34FSR77Z \
  | 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: 80ccf61490d6a333bfec33f7c2ca3ffe43371f3196a1a6f9fe30fb7a2de06fef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42b95146c11bd4261e050b7e4eef19f8b0b4b70ab3481bfec5025bbb5c3f87ea",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-09-03T14:45:13Z",
    "title_canon_sha256": "0c038eae68c0d7220027efc50df366511c0fcbc7bd64115cd768b308c3b5772e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0707",
    "kind": "arxiv",
    "version": 1
  }
}