Pith Number

pith:HQR7SQHJ

pith:2012:HQR7SQHJNYUVMIKPGEKXRLPT7S

not attested not anchored not stored refs pending

Topology of non-negatively curved manifolds

Christine Escher, Wolfgang Ziller

arxiv:1206.5997 v1 · 2012-06-26 · 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{HQR7SQHJNYUVMIKPGEKXRLPT7S}

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	2026-05-18T03:52:37.379830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c23f940e96e2956214f311578adf3fca15a6d3e39dacde0551cd3868828f1cb

Aliases

arxiv: 1206.5997 · arxiv_version: 1206.5997v1 · doi: 10.48550/arxiv.1206.5997 · pith_short_12: HQR7SQHJNYUV · pith_short_16: HQR7SQHJNYUVMIKP · pith_short_8: HQR7SQHJ

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/HQR7SQHJNYUVMIKPGEKXRLPT7S \
  | 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: 3c23f940e96e2956214f311578adf3fca15a6d3e39dacde0551cd3868828f1cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aac78568dcfa25aedabf0a41b8958e758cf0b5fd30069d91439448a2d0bf301",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-06-26T14:04:21Z",
    "title_canon_sha256": "d27d33289172e1a5924a91e5c6a6ee9fb47aa72e8d07629ec787464026420abb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5997",
    "kind": "arxiv",
    "version": 1
  }
}