Pith Number

pith:PN6IDNTY

pith:2019:PN6IDNTYMUXBW7FPL74RTO76DJ

not attested not anchored not stored refs pending

Categories internal to crossed modules

Jihad Jamil Mohammed, Tun\c{c}ar \c{S}ahan

arxiv:1901.04694 v2 · 2019-01-15 · math.CT · 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{PN6IDNTYMUXBW7FPL74RTO76DJ}

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	2026-05-17T23:46:35.906800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b7c81b678652e1b7caf5ff919bbfe1a4a43617f5c2599a15bca0f3a282a29fe

Aliases

arxiv: 1901.04694 · arxiv_version: 1901.04694v2 · doi: 10.48550/arxiv.1901.04694 · pith_short_12: PN6IDNTYMUXB · pith_short_16: PN6IDNTYMUXBW7FP · pith_short_8: PN6IDNTY

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/PN6IDNTYMUXBW7FPL74RTO76DJ \
  | 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: 7b7c81b678652e1b7caf5ff919bbfe1a4a43617f5c2599a15bca0f3a282a29fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b88f9c3765ecb888a20cff84d29a06e8d2eada9a9a8a14d7be9af440e14a9758",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-01-15T07:42:59Z",
    "title_canon_sha256": "54d5c91cd5f267d254d2981db45485529c6cbf4d464fa758b77c2cd55abbb993"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04694",
    "kind": "arxiv",
    "version": 2
  }
}