Pith Number

pith:MQDG5R5H

pith:2017:MQDG5R5HPNDTYXAXSETMZOL2NG

not attested not anchored not stored refs pending

The linear nature of pseudowords

Alfredo Costa, Jorge Almeida, Jos\'e Carlos Costa, Marc Zeitoun

arxiv:1702.08083 v2 · 2017-02-26 · cs.FL · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQDG5R5HPNDTYXAXSETMZOL2NG}

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	2026-05-17T23:42:31.183498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64066ec7a77b473c5c179126ccb97a69899966d8501de5dd23ae848f6f6a03e3

Aliases

arxiv: 1702.08083 · arxiv_version: 1702.08083v2 · doi: 10.48550/arxiv.1702.08083 · pith_short_12: MQDG5R5HPNDT · pith_short_16: MQDG5R5HPNDTYXAX · pith_short_8: MQDG5R5H

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/MQDG5R5HPNDTYXAXSETMZOL2NG \
  | 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: 64066ec7a77b473c5c179126ccb97a69899966d8501de5dd23ae848f6f6a03e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dba613572f59aa3a8ef05565e4eb758765e88168172e9b1fa29595a7ce472025",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-02-26T20:45:42Z",
    "title_canon_sha256": "7cb28816e72d0ac5f9601246ce9af1fc2b2e876015578ec09ace392a2f7a9f9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08083",
    "kind": "arxiv",
    "version": 2
  }
}