Pith Number

pith:ZOUSFQTN

pith:2012:ZOUSFQTN3LD7I2A2OCMZ2234IU

not attested not anchored not stored refs pending

A geometric view of the Chern character

Florin Dumitrescu

arxiv:1202.2719 v1 · 2012-02-13 · math.AT · 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{ZOUSFQTN3LD7I2A2OCMZ2234IU}

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	2026-05-18T04:02:25.842490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cba922c26ddac7f4681a70999d6b7c4512f35eae43e04d3944cbcff8b535f26c

Aliases

arxiv: 1202.2719 · arxiv_version: 1202.2719v1 · doi: 10.48550/arxiv.1202.2719 · pith_short_12: ZOUSFQTN3LD7 · pith_short_16: ZOUSFQTN3LD7I2A2 · pith_short_8: ZOUSFQTN

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/ZOUSFQTN3LD7I2A2OCMZ2234IU \
  | 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: cba922c26ddac7f4681a70999d6b7c4512f35eae43e04d3944cbcff8b535f26c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "330471f955407f615d4c4507c5194b3028c9c225851f487d8279f4fd83f31e82",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-02-13T13:27:00Z",
    "title_canon_sha256": "f433956b9a7a3d927057532d4415db98ea08c619a29241f5e5c418ac30734d8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2719",
    "kind": "arxiv",
    "version": 1
  }
}