Pith Number

pith:5M3JIUHD

pith:2018:5M3JIUHDAHEW7XABVRWMV7JLKM

not attested not anchored not stored refs pending

Relative differential cohomology and generalized Cheeger-Simons characters

Fabio Ferrari Ruffino, Juan Carlos Rocha Barriga

arxiv:1811.07035 v1 · 2018-11-16 · math.AT · math.DG · 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{5M3JIUHDAHEW7XABVRWMV7JLKM}

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	2026-05-18T00:00:12.609564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb369450e301c96fdc01ac6ccafd2b5327c0412d7d478acc46703e089a2248da

Aliases

arxiv: 1811.07035 · arxiv_version: 1811.07035v1 · doi: 10.48550/arxiv.1811.07035 · pith_short_12: 5M3JIUHDAHEW · pith_short_16: 5M3JIUHDAHEW7XAB · pith_short_8: 5M3JIUHD

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/5M3JIUHDAHEW7XABVRWMV7JLKM \
  | 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: eb369450e301c96fdc01ac6ccafd2b5327c0412d7d478acc46703e089a2248da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d58c405811ec5fb5d6a031b3c7cb1bab14288213e93d286fe401447f91e2f78d",
    "cross_cats_sorted": [
      "math.DG",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-11-16T21:27:14Z",
    "title_canon_sha256": "5558ea20266e67fc04996faf419a1a30e61c287e444c2a115e1b3d0569ab6970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07035",
    "kind": "arxiv",
    "version": 1
  }
}