Pith Number

pith:SP4RPF6I

pith:2013:SP4RPF6IP2OFE6CHQS55VNQGMI

not attested not anchored not stored refs pending

Distributed Function Computation Over a Rooted Directed Tree

Aslan Tchamkerten, Milad Sefidgaran

arxiv:1312.3631 v2 · 2013-12-12 · 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{SP4RPF6IP2OFE6CHQS55VNQGMI}

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	2026-05-18T02:19:28.665042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93f91797c87e9c52784784bbdab606620381acd765c9b0adb277b57cb4ed2518

Aliases

arxiv: 1312.3631 · arxiv_version: 1312.3631v2 · doi: 10.48550/arxiv.1312.3631 · pith_short_12: SP4RPF6IP2OF · pith_short_16: SP4RPF6IP2OFE6CH · pith_short_8: SP4RPF6I

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/SP4RPF6IP2OFE6CHQS55VNQGMI \
  | 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: 93f91797c87e9c52784784bbdab606620381acd765c9b0adb277b57cb4ed2518

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4de62f74f6f628f5d6a2c6f007ae4bb949ac62b4767bebec1b6730925d75b056",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-12-12T20:57:42Z",
    "title_canon_sha256": "a8fa0085304f1cda4d85dd6903d44f096cce41e28f883b86c8604e8a1e942545"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3631",
    "kind": "arxiv",
    "version": 2
  }
}