Pith Number

pith:KSVKIBLS

pith:2016:KSVKIBLSXY6PAONFZDRSNSI7JY

not attested not anchored not stored refs pending

The Fermat Functors, Part I: The theory

Enxin Wu

arxiv:1603.09266 v1 · 2016-03-30 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KSVKIBLSXY6PAONFZDRSNSI7JY}

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	2026-05-18T01:18:00.957502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54aaa40572be3cf039a5c8e326c91f4e268f1917623faeb59c734e17e7be0b6a

Aliases

arxiv: 1603.09266 · arxiv_version: 1603.09266v1 · doi: 10.48550/arxiv.1603.09266 · pith_short_12: KSVKIBLSXY6P · pith_short_16: KSVKIBLSXY6PAONF · pith_short_8: KSVKIBLS

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/KSVKIBLSXY6PAONFZDRSNSI7JY \
  | 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: 54aaa40572be3cf039a5c8e326c91f4e268f1917623faeb59c734e17e7be0b6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0561671a38a3f205117af64a0cd16ea47d96b351cf61f33405a086f42e06c94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2016-03-30T16:23:37Z",
    "title_canon_sha256": "1b9d439a4206f394dfb25de8eda2de5b61f26cdfd876e770d4d2fe0acba6b2da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.09266",
    "kind": "arxiv",
    "version": 1
  }
}