Pith Number

pith:OXGHURE2

pith:2015:OXGHURE2ZBL5NLNM2P26QE4B2S

not attested not anchored not stored refs pending

Topological Rigidity Problems

Ramesh Kasilingam

arxiv:1510.04139 v2 · 2015-10-11 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXGHURE2ZBL5NLNM2P26QE4B2S}

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	2026-05-18T00:37:48.793914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75cc7a449ac857d6adacd3f5e81381d4907760cbd7bc79bbfcf27e25f44361c0

Aliases

arxiv: 1510.04139 · arxiv_version: 1510.04139v2 · doi: 10.48550/arxiv.1510.04139 · pith_short_12: OXGHURE2ZBL5 · pith_short_16: OXGHURE2ZBL5NLNM · pith_short_8: OXGHURE2

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/OXGHURE2ZBL5NLNM2P26QE4B2S \
  | 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: 75cc7a449ac857d6adacd3f5e81381d4907760cbd7bc79bbfcf27e25f44361c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e37984cbf1ec09a8432d3a5d473625e32a3f0b912a34b1dece62610c216d25b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-10-11T10:51:05Z",
    "title_canon_sha256": "cb900f4e16a9382e32093fe8ad60c46503af76ecc9aeebee375d83fe5109585a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04139",
    "kind": "arxiv",
    "version": 2
  }
}