Pith Number

pith:FDVTFE7M

pith:2010:FDVTFE7MFXCH2FVXC23RZERZ72

not attested not anchored not stored refs pending

On the Homology of Configuration Spaces Associated to Centers of Mass

Dai Tamaki

arxiv:1004.0039 v1 · 2010-04-01 · math.AT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDVTFE7MFXCH2FVXC23RZERZ72}

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	2026-05-18T02:24:25.343205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28eb3293ec2dc47d16b716b71c9239fe8cabb2d54735f116554f216bc8ee146f

Aliases

arxiv: 1004.0039 · arxiv_version: 1004.0039v1 · doi: 10.48550/arxiv.1004.0039 · pith_short_12: FDVTFE7MFXCH · pith_short_16: FDVTFE7MFXCH2FVX · pith_short_8: FDVTFE7M

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/FDVTFE7MFXCH2FVXC23RZERZ72 \
  | 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: 28eb3293ec2dc47d16b716b71c9239fe8cabb2d54735f116554f216bc8ee146f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41098017727e53356c06bec48a6b6d141171e4bce6016cb23e6a3df45a50e94f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-04-01T02:03:50Z",
    "title_canon_sha256": "136e347bd24e55342b86cb59062a2c937420184ba96474a42e4f810c7038d954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0039",
    "kind": "arxiv",
    "version": 1
  }
}