Pith Number

pith:Y7CQHJ7C

pith:2014:Y7CQHJ7C2NFCLBLUKE43APIIYI

not attested not anchored not stored refs pending

A tightness criterion for homology manifolds with or without boundary

Bhaskar Bagchi

arxiv:1406.4299 v1 · 2014-06-17 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7CQHJ7C2NFCLBLUKE43APIIYI}

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	2026-05-18T02:49:37.907428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7c503a7e2d34a2585745139b03d08c232bd62b73ce910394206030977d0f101

Aliases

arxiv: 1406.4299 · arxiv_version: 1406.4299v1 · doi: 10.48550/arxiv.1406.4299 · pith_short_12: Y7CQHJ7C2NFC · pith_short_16: Y7CQHJ7C2NFCLBLU · pith_short_8: Y7CQHJ7C

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/Y7CQHJ7C2NFCLBLUKE43APIIYI \
  | 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: c7c503a7e2d34a2585745139b03d08c232bd62b73ce910394206030977d0f101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5e59484ee63b84f8acc3b721187448f776dbf8f5f4509c0cd848168678d6666",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-06-17T10:06:20Z",
    "title_canon_sha256": "26474216854f8c6ccdfbb427699f80c89849ee35cbfdc17b434dffb4e4954bbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4299",
    "kind": "arxiv",
    "version": 1
  }
}