Pith Number

pith:B5YESOCS

pith:2003:B5YESOCSW2DA7EZA7LWUJV5IGP

not attested not anchored not stored refs pending

The barycenter method on singular spaces

Peter A. Storm

arxiv:math/0301087 v3 · 2003-01-09 · 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{B5YESOCSW2DA7EZA7LWUJV5IGP}

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	2026-07-04T15:39:04.136806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f70493852b6860f9320faed44d7a833f8f5028c12e5c64900cb5e119524130f

Aliases

arxiv: math/0301087 · arxiv_version: math/0301087v3 · doi: 10.48550/arxiv.math/0301087 · pith_short_12: B5YESOCSW2DA · pith_short_16: B5YESOCSW2DA7EZA · pith_short_8: B5YESOCS

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/B5YESOCSW2DA7EZA7LWUJV5IGP \
  | 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: 0f70493852b6860f9320faed44d7a833f8f5028c12e5c64900cb5e119524130f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1f37ec880c0d2975538fd6370110fa53b8a0f8d97dd20ee49a4a10ed4e0de29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2003-01-09T16:48:03Z",
    "title_canon_sha256": "3da6373b2c23d8e6ad6a683ca42126a8a3dc26d7dc367b58cf84bbcaf1e95b41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0301087",
    "kind": "arxiv",
    "version": 3
  }
}