Pith Number

pith:FQDA5DN6

pith:2016:FQDA5DN6EUPTAT2NDHSEKRDDIK

not attested not anchored not stored refs pending

Variable-length Non-overlapping Codes

Stefano Bilotta

arxiv:1605.03785 v1 · 2016-05-12 · cs.IT · cs.DM · 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{FQDA5DN6EUPTAT2NDHSEKRDDIK}

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	2026-05-18T01:14:59.493635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c060e8dbe251f304f4d19e445446342831412df7f9e48dc657f40830b55b2e2

Aliases

arxiv: 1605.03785 · arxiv_version: 1605.03785v1 · doi: 10.48550/arxiv.1605.03785 · pith_short_12: FQDA5DN6EUPT · pith_short_16: FQDA5DN6EUPTAT2N · pith_short_8: FQDA5DN6

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/FQDA5DN6EUPTAT2NDHSEKRDDIK \
  | 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: 2c060e8dbe251f304f4d19e445446342831412df7f9e48dc657f40830b55b2e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2ec49636f28b517b5d680bde624e268350a864fe17b90d720c6914ab67597ae",
    "cross_cats_sorted": [
      "cs.DM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-05-12T12:44:26Z",
    "title_canon_sha256": "77f865f0f9db3646ca8bf7e92cba94b3c3e1dcb76af123bdefaccc15eb7a949d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03785",
    "kind": "arxiv",
    "version": 1
  }
}