Pith Number

pith:EK2FVJW3

pith:2015:EK2FVJW3KCGWJCMBIBU2JVY7MK

not attested not anchored not stored refs pending

Some Higher Coalgebra

Jonathan Beardsley

arxiv:1508.00861 v4 · 2015-08-04 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EK2FVJW3KCGWJCMBIBU2JVY7MK}

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	2026-05-18T01:04:00.126379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22b45aa6db508d6489814069a4d71f6280cae107a49a08d53fa633a8783bcf65

Aliases

arxiv: 1508.00861 · arxiv_version: 1508.00861v4 · doi: 10.48550/arxiv.1508.00861 · pith_short_12: EK2FVJW3KCGW · pith_short_16: EK2FVJW3KCGWJCMB · pith_short_8: EK2FVJW3

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/EK2FVJW3KCGWJCMBIBU2JVY7MK \
  | 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: 22b45aa6db508d6489814069a4d71f6280cae107a49a08d53fa633a8783bcf65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87f9a377a6a1ab781935cd07cbb6ded105adbc8966e9870e79c4bb7ee595ecae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-08-04T18:36:14Z",
    "title_canon_sha256": "cfb1370e603f866cbbc4ab3b5c53c03e45e288df1fd7a32e7b62631307eccb9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00861",
    "kind": "arxiv",
    "version": 4
  }
}