Pith Number

pith:DCDHWSZ7

pith:2015:DCDHWSZ7WO2ZBLZSWPSGZFS3TJ

not attested not anchored not stored refs pending

Spaces of smooth embeddings and configuration categories

Michael S. Weiss, Pedro Boavida de Brito

arxiv:1502.01640 v3 · 2015-02-05 · 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{DCDHWSZ7WO2ZBLZSWPSGZFS3TJ}

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	2026-05-18T00:23:02.176025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18867b4b3fb3b590af32b3e46c965b9a4197cb3163c3ab37da527f79e44d2d2e

Aliases

arxiv: 1502.01640 · arxiv_version: 1502.01640v3 · doi: 10.48550/arxiv.1502.01640 · pith_short_12: DCDHWSZ7WO2Z · pith_short_16: DCDHWSZ7WO2ZBLZS · pith_short_8: DCDHWSZ7

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/DCDHWSZ7WO2ZBLZSWPSGZFS3TJ \
  | 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: 18867b4b3fb3b590af32b3e46c965b9a4197cb3163c3ab37da527f79e44d2d2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "649d0103c41e6ebae88759304ec2dcdc63cf9878da3bd7edf353e1c7b2591fd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-02-05T17:01:31Z",
    "title_canon_sha256": "84249570db20d334bb56b136e40e1751d7caefdc43da7e8995b230c539093147"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01640",
    "kind": "arxiv",
    "version": 3
  }
}