Pith Number

pith:HRBB4NNQ

pith:2016:HRBB4NNQP4SLFZBCIMQNRPVS3L

not attested not anchored not stored refs pending

Bounding the optimal rate of the ICSI and ICCSI problem

Eimear Byrne, Marco Calderini

arxiv:1604.05991 v2 · 2016-04-20 · 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{HRBB4NNQP4SLFZBCIMQNRPVS3L}

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	2026-05-18T00:55:25.165765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c421e35b07f24b2e4224320d8beb2dae03d329aca22cc9bab6bb429c66a60ba

Aliases

arxiv: 1604.05991 · arxiv_version: 1604.05991v2 · doi: 10.48550/arxiv.1604.05991 · pith_short_12: HRBB4NNQP4SL · pith_short_16: HRBB4NNQP4SLFZBC · pith_short_8: HRBB4NNQ

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/HRBB4NNQP4SLFZBCIMQNRPVS3L \
  | 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: 3c421e35b07f24b2e4224320d8beb2dae03d329aca22cc9bab6bb429c66a60ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4458b06492154d3bd1847e0551fd8715c2312451554d6ee8f5612bcc1bbb3e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-04-20T15:01:36Z",
    "title_canon_sha256": "755ba0417137701cad3a9c80b4166b67ab0f210cd75eb31913e3d0d3b4ca7225"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05991",
    "kind": "arxiv",
    "version": 2
  }
}