Pith Number

pith:QZCWFX6M

pith:2018:QZCWFX6MQYCAC3UKCO64UDOZNV

not attested not anchored not stored refs pending

Comonad Cohomology of Track Categories

David Blanc, Simona Paoli

arxiv:1801.05065 v3 · 2018-01-15 · math.AT · 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{QZCWFX6MQYCAC3UKCO64UDOZNV}

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	2026-05-17T23:48:40.756352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

864562dfcc8604016e8a13bdca0dd96d5221ef968e51dac555b6e8a4eafb92b6

Aliases

arxiv: 1801.05065 · arxiv_version: 1801.05065v3 · doi: 10.48550/arxiv.1801.05065 · pith_short_12: QZCWFX6MQYCA · pith_short_16: QZCWFX6MQYCAC3UK · pith_short_8: QZCWFX6M

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/QZCWFX6MQYCAC3UKCO64UDOZNV \
  | 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: 864562dfcc8604016e8a13bdca0dd96d5221ef968e51dac555b6e8a4eafb92b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d7e29e3eb35c2d7fd719cdccf31f4c9008ef6359728f7d316dc0a8412c810de",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-01-15T23:28:52Z",
    "title_canon_sha256": "909d7ac48e559586b737f20f105a1f28921b6d0c75c8d2398b72a6044b3d1242"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05065",
    "kind": "arxiv",
    "version": 3
  }
}