Pith Number

pith:42FSAWXD

pith:2026:42FSAWXD6N2O4IM4TCPTNWHPUW

not attested not anchored not stored refs pending

FLUID: Slack-based Low-latency Delivery

Michael Luby

arxiv:2605.23947 v1 · 2026-05-05 · cs.NI · 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{42FSAWXD6N2O4IM4TCPTNWHPUW}

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	2026-05-26T00:02:23.271533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68b205ae3f374ee219c989f36d8efa5bbe8922ee5712ecb22988fb37e25b8d2

Aliases

arxiv: 2605.23947 · arxiv_version: 2605.23947v1 · doi: 10.48550/arxiv.2605.23947 · pith_short_12: 42FSAWXD6N2O · pith_short_16: 42FSAWXD6N2O4IM4 · pith_short_8: 42FSAWXD

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/42FSAWXD6N2O4IM4TCPTNWHPUW \
  | 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: e68b205ae3f374ee219c989f36d8efa5bbe8922ee5712ecb22988fb37e25b8d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8459ef7f3a36e3194db3471fb10786d6a568c8407e357af80efe62b6483927c6",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2026-05-05T16:40:28Z",
    "title_canon_sha256": "69ff998a0444685d23860b4a765ed5fb7a72a2b329503e3a97407f0a4fc8255c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23947",
    "kind": "arxiv",
    "version": 1
  }
}