Pith Number

pith:7ESYBXQG

pith:2019:7ESYBXQGGF5MT7PSH7W4LC7SYP

not attested not anchored not stored refs pending

Functors on Posets Left Kan Extend to Cosheaves: an Erratum

Justin Curry

arxiv:1907.09416 v1 · 2019-07-22 · 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{7ESYBXQGGF5MT7PSH7W4LC7SYP}

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	2026-05-17T23:39:59.248790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f92580de06317ac9fdf23fedc58bf2c3eaec35d773b66af8e9d6e14de933f81d

Aliases

arxiv: 1907.09416 · arxiv_version: 1907.09416v1 · doi: 10.48550/arxiv.1907.09416 · pith_short_12: 7ESYBXQGGF5M · pith_short_16: 7ESYBXQGGF5MT7PS · pith_short_8: 7ESYBXQG

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/7ESYBXQGGF5MT7PSH7W4LC7SYP \
  | 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: f92580de06317ac9fdf23fedc58bf2c3eaec35d773b66af8e9d6e14de933f81d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e67dcb5b6a34652b9502f5a2def5428f3df2a12fc7883f1269569dd4aabf97a3",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2019-07-22T16:44:01Z",
    "title_canon_sha256": "1bf7fbae0e59f679fce3a02d3ef7d7cf2690ad070a65c0cc1e1f416453851c1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09416",
    "kind": "arxiv",
    "version": 1
  }
}