Pith Number

pith:EJEHQ6T6

pith:2003:EJEHQ6T62AE65VLJSJUEJDGZKD

not attested not anchored not stored refs pending

A cohomological description of Abelian bundles and gerbes

Roger Picken

arxiv:math/0305147 v1 · 2003-05-09 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJEHQ6T62AE65VLJSJUEJDGZKD}

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	2026-07-04T14:37:18.106620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2248787a7ed009eed5699268448cd950ef25e954e68f673d86329ba7bff2fa71

Aliases

arxiv: math/0305147 · arxiv_version: math/0305147v1 · doi: 10.48550/arxiv.math/0305147 · pith_short_12: EJEHQ6T62AE6 · pith_short_16: EJEHQ6T62AE65VLJ · pith_short_8: EJEHQ6T6

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/EJEHQ6T62AE65VLJSJUEJDGZKD \
  | 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: 2248787a7ed009eed5699268448cd950ef25e954e68f673d86329ba7bff2fa71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3237c6adf265e7caa5e8c53f6372209e2f1a7105bf40d4a85fa5189ab7220734",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2003-05-09T20:23:04Z",
    "title_canon_sha256": "f376ebc3a5d13d6818ea26c4d11e8b2cd7318d58fd6b48bbd5c5425fe2d81585"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0305147",
    "kind": "arxiv",
    "version": 1
  }
}