Pith Number

pith:KKHOFCMC

pith:2010:KKHOFCMC6Z4U7VZAQMLLX7WWB2

not attested not anchored not stored refs pending

On the BICM Capacity

Alex Alvarado, Erik Agrell

arxiv:1001.4548 v2 · 2010-01-25 · 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{KKHOFCMC6Z4U7VZAQMLLX7WWB2}

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	2026-05-18T04:10:37.342032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

528ee28982f6794fd7208316bbfed60e88e7f074b0c612ff769462688b598941

Aliases

arxiv: 1001.4548 · arxiv_version: 1001.4548v2 · doi: 10.48550/arxiv.1001.4548 · pith_short_12: KKHOFCMC6Z4U · pith_short_16: KKHOFCMC6Z4U7VZA · pith_short_8: KKHOFCMC

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/KKHOFCMC6Z4U7VZAQMLLX7WWB2 \
  | 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: 528ee28982f6794fd7208316bbfed60e88e7f074b0c612ff769462688b598941

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8b5b22748fec3fd4167278f18a25ff596dead5851bfe1a6e06f56f4095a6283",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-01-25T21:34:28Z",
    "title_canon_sha256": "01a048b5fc7074f5691977398d45025ce4f8daa744dc6752b33898332707ba1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4548",
    "kind": "arxiv",
    "version": 2
  }
}