Pith Number

pith:RY6IZVDV

pith:1999:RY6IZVDVBRJ4NLFWW7ECQJBPYU

not attested not anchored not stored refs pending

Rectifiability of flat chains

Brian White

arxiv:math/9907209 v1 · 1999-07-01 · math.CA · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RY6IZVDVBRJ4NLFWW7ECQJBPYU}

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	2026-05-18T01:05:32.678305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3c8cd4750c53c6acb6b7c828242fc5391cd4d1364962735b5a017a941d9a1e

Aliases

arxiv: math/9907209 · arxiv_version: math/9907209v1 · doi: 10.48550/arxiv.math/9907209 · pith_short_12: RY6IZVDVBRJ4 · pith_short_16: RY6IZVDVBRJ4NLFW · pith_short_8: RY6IZVDV

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/RY6IZVDVBRJ4NLFWW7ECQJBPYU \
  | 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: 8e3c8cd4750c53c6acb6b7c828242fc5391cd4d1364962735b5a017a941d9a1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b05a91f675002c44cd080d218f6838450e7effaa1057fde0f55c27060a84fe5f",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "1999-07-01T00:00:00Z",
    "title_canon_sha256": "12faca6e4348af006637edd07724ff42bda36db29837d7d6274b7b0c0466fb87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9907209",
    "kind": "arxiv",
    "version": 1
  }
}