Pith Number

pith:SDHYWME3

pith:2008:SDHYWME3EIQDCFDTLT7ZWE7TYL

not attested not anchored not stored refs pending

Geometry of Non-Archimedean Gromov-Hausdorff distance

Derong Qiu

arxiv:0812.4822 v1 · 2008-12-28 · math.MG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDHYWME3EIQDCFDTLT7ZWE7TYL}

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	2026-05-18T03:54:26.490471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90cf8b309b22203114735cff9b13f3c2f2a718a5a76236a03002cce915b1078f

Aliases

arxiv: 0812.4822 · arxiv_version: 0812.4822v1 · doi: 10.48550/arxiv.0812.4822 · pith_short_12: SDHYWME3EIQD · pith_short_16: SDHYWME3EIQDCFDT · pith_short_8: SDHYWME3

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/SDHYWME3EIQDCFDTLT7ZWE7TYL \
  | 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: 90cf8b309b22203114735cff9b13f3c2f2a718a5a76236a03002cce915b1078f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a1819ff59602cd4a07364d12e333f60ab5185ef97a5b0427e37cceabd46d5f",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2008-12-28T15:31:15Z",
    "title_canon_sha256": "d26ea7d2b2fce046016a86429e2ae0f8fa7c1181bd5acd26f3a55ab7828a1f5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4822",
    "kind": "arxiv",
    "version": 1
  }
}