Pith Number

pith:S236NAEB

pith:2007:S236NAEB5FXVG2E45C3ASI3EQW

not attested not anchored not stored refs pending

Enhanced negative type for finite metric trees

Anthony Weston, Ian Doust

arxiv:0705.0411 v2 · 2007-05-03 · math.FA · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S236NAEB5FXVG2E45C3ASI3EQW}

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	2026-05-18T01:33:59.000763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96b7e68081e96f53689ce8b6092364858c1e577c35d05df4567ef8525e78837c

Aliases

arxiv: 0705.0411 · arxiv_version: 0705.0411v2 · doi: 10.48550/arxiv.0705.0411 · pith_short_12: S236NAEB5FXV · pith_short_16: S236NAEB5FXVG2E4 · pith_short_8: S236NAEB

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/S236NAEB5FXVG2E45C3ASI3EQW \
  | 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: 96b7e68081e96f53689ce8b6092364858c1e577c35d05df4567ef8525e78837c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "600e0f45af8955b0979aa13104d1d3964ba52b740d543f7c6779d66c71a00a94",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "2007-05-03T06:17:03Z",
    "title_canon_sha256": "b872cfa070775e19f2316e8f4c98571ed0a0f10808deef637bef1bd316074052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0411",
    "kind": "arxiv",
    "version": 2
  }
}