Pith Number

pith:NTJB6YJR

pith:2015:NTJB6YJRT6EMJ4O324RUEKVA55

not attested not anchored not stored refs pending

A simple framework on sorting permutations

Christian M. Reidys, Ricky X. F. Chen

arxiv:1502.07971 v2 · 2015-02-27 · math.CO · 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{NTJB6YJRT6EMJ4O324RUEKVA55}

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	2026-05-18T02:23:25.987847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cd21f61319f88c4f1dbd723422aa0ef711ed0efb07b528bb201a112db545fbd

Aliases

arxiv: 1502.07971 · arxiv_version: 1502.07971v2 · doi: 10.48550/arxiv.1502.07971 · pith_short_12: NTJB6YJRT6EM · pith_short_16: NTJB6YJRT6EMJ4O3 · pith_short_8: NTJB6YJR

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/NTJB6YJRT6EMJ4O324RUEKVA55 \
  | 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: 6cd21f61319f88c4f1dbd723422aa0ef711ed0efb07b528bb201a112db545fbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cf9fae81e9f3ab0ec9691dc8be8e4f028819335a846d00fcc8029066ba50fb7",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-02-27T17:05:07Z",
    "title_canon_sha256": "4441a8db0896469233ab4f69ba9d8e49914908c0fde4c7cd8e9ec2c418c89709"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07971",
    "kind": "arxiv",
    "version": 2
  }
}