Pith Number

pith:QAJAKK2C

pith:2017:QAJAKK2CWFYW4KRMBRHU2PDKCD

not attested not anchored not stored refs pending

Differential Cocycles and Dixmier-Douady Bundles

Derek Krepski, Jordan Watts

arxiv:1705.01162 v1 · 2017-05-02 · 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{QAJAKK2CWFYW4KRMBRHU2PDKCD}

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	2026-05-18T00:06:41.933837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8012052b42b1716e2a2c0c4f4d3c6a10ce312d336c6d3486b66fa7402ded3e84

Aliases

arxiv: 1705.01162 · arxiv_version: 1705.01162v1 · doi: 10.48550/arxiv.1705.01162 · pith_short_12: QAJAKK2CWFYW · pith_short_16: QAJAKK2CWFYW4KRM · pith_short_8: QAJAKK2C

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/QAJAKK2CWFYW4KRMBRHU2PDKCD \
  | 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: 8012052b42b1716e2a2c0c4f4d3c6a10ce312d336c6d3486b66fa7402ded3e84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f3e79ef9e394f8f6072ff5575a461e65c5e9b566f8838886550d27f7fb41bf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-05-02T20:14:29Z",
    "title_canon_sha256": "040cc5cb1bb0e089102b60c508ab992da1403f2e0a359e5501dfedcbfd9ff808"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01162",
    "kind": "arxiv",
    "version": 1
  }
}