Pith Number

pith:7B7IAU7P

pith:2011:7B7IAU7P33QCJOR46PZNPIWBGI

not attested not anchored not stored refs pending

On cohomology of the Higson compactification of hyperbolic spaces

Alexander Dranishnikov, Thanos Gentimis

arxiv:1110.2518 v3 · 2011-10-11 · 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{7B7IAU7P33QCJOR46PZNPIWBGI}

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	2026-05-18T03:38:14.409027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87e8053efdee024ba3cf3f2d7a2c132099e30567fcfaaebac9d8dba41ca5335

Aliases

arxiv: 1110.2518 · arxiv_version: 1110.2518v3 · doi: 10.48550/arxiv.1110.2518 · pith_short_12: 7B7IAU7P33QC · pith_short_16: 7B7IAU7P33QCJOR4 · pith_short_8: 7B7IAU7P

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/7B7IAU7P33QCJOR46PZNPIWBGI \
  | 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: f87e8053efdee024ba3cf3f2d7a2c132099e30567fcfaaebac9d8dba41ca5335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b75c91115ea513d7b05f2e564f7d0b4196c9bfa5d679c66cc86f6a6d0d455d7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2011-10-11T22:04:10Z",
    "title_canon_sha256": "4cfe63f50344c838d4bc7ae4cdcac4ea44ef2c42c8297c342f306bf3d8a70da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2518",
    "kind": "arxiv",
    "version": 3
  }
}