Pith Number

pith:EEL7BSEG

pith:2016:EEL7BSEGVJHX2XRQR2LU2WDYXM

not attested not anchored not stored refs pending

Stable Postnikov data of Picard 2-categories

Ang\'elica M. Osorno, Marc Stephan, Nick Gurski, Niles Johnson

arxiv:1606.07032 v2 · 2016-06-22 · math.AT · math.CT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEL7BSEGVJHX2XRQR2LU2WDYXM}

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	2026-05-18T00:29:05.885481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2117f0c886aa4f7d5e308e974d5878bb218dcab72112361ba5334c2af89053d0

Aliases

arxiv: 1606.07032 · arxiv_version: 1606.07032v2 · doi: 10.48550/arxiv.1606.07032 · pith_short_12: EEL7BSEGVJHX · pith_short_16: EEL7BSEGVJHX2XRQ · pith_short_8: EEL7BSEG

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/EEL7BSEGVJHX2XRQR2LU2WDYXM \
  | 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: 2117f0c886aa4f7d5e308e974d5878bb218dcab72112361ba5334c2af89053d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3d361fba0eacf9948108bbabe75b516f5fc19c9392ba437067f413eb37da296",
    "cross_cats_sorted": [
      "math.CT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-06-22T18:16:38Z",
    "title_canon_sha256": "479e2d12af3c4f1149e42a715ea348b46177d47a14333ffd155eda0d723a3468"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.07032",
    "kind": "arxiv",
    "version": 2
  }
}