Pith Number

pith:LBA4PGUJ

pith:2014:LBA4PGUJYM2DOJLBLULR2MTU4Z

not attested not anchored not stored refs pending

Causal Erasure Channels

Adam Smith, Raef Bassily

arxiv:1409.3893 v1 · 2014-09-13 · 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{LBA4PGUJYM2DOJLBLULR2MTU4Z}

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	2026-05-18T02:42:53.435716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5841c79a89c3343725615d171d3274e66118632219b65a9ad7bb8a1e696636fc

Aliases

arxiv: 1409.3893 · arxiv_version: 1409.3893v1 · doi: 10.48550/arxiv.1409.3893 · pith_short_12: LBA4PGUJYM2D · pith_short_16: LBA4PGUJYM2DOJLB · pith_short_8: LBA4PGUJ

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/LBA4PGUJYM2DOJLBLULR2MTU4Z \
  | 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: 5841c79a89c3343725615d171d3274e66118632219b65a9ad7bb8a1e696636fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e362166ed0e227f9ef5ec63ee2cf63450bbaa9edfe45aa7028e316bdf0143106",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-09-13T00:49:20Z",
    "title_canon_sha256": "9f0effb0048aeba885b95e737c61006a926ea5d498ac8506be9e6959143215ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3893",
    "kind": "arxiv",
    "version": 1
  }
}