Pith Number

pith:HMDUBVXL

pith:2015:HMDUBVXLFUH673IYDVDPN6U5JW

not attested not anchored not stored refs pending

A Category Theory of Communication Theory

Eric Werner

arxiv:1505.07712 v1 · 2015-05-28 · cs.IT · cs.CL · cs.LO · 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{HMDUBVXLFUH673IYDVDPN6U5JW}

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	2026-05-18T02:00:56.032898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b0740d6eb2d0fefed181d46f6fa9d4da6f3063128628ab160eb7b260f54c614

Aliases

arxiv: 1505.07712 · arxiv_version: 1505.07712v1 · doi: 10.48550/arxiv.1505.07712 · pith_short_12: HMDUBVXLFUH6 · pith_short_16: HMDUBVXLFUH673IY · pith_short_8: HMDUBVXL

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/HMDUBVXLFUH673IYDVDPN6U5JW \
  | 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: 3b0740d6eb2d0fefed181d46f6fa9d4da6f3063128628ab160eb7b260f54c614

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5672942480db80be54de938586aca056b356053dfa9d1776e87a1cf83af8211d",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-05-28T15:00:27Z",
    "title_canon_sha256": "206d258f7ce20fc1eada30d28a3d09cdc27182a097f191a9e5d613842f6d375d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07712",
    "kind": "arxiv",
    "version": 1
  }
}