Pith Number

pith:OMUCQ3RK

pith:2010:OMUCQ3RKNUN5WYMAJETUHFLLSG

not attested not anchored not stored refs pending

Inverse problems in geometric graphs using internal measurements

Michael Robinson

arxiv:1008.2933 v1 · 2010-08-17 · 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{OMUCQ3RKNUN5WYMAJETUHFLLSG}

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	2026-05-18T04:42:04.088895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7328286e2a6d1bdb6180492743956b919255b8a4048ff7bd2d52aebdd94ee5b5

Aliases

arxiv: 1008.2933 · arxiv_version: 1008.2933v1 · doi: 10.48550/arxiv.1008.2933 · pith_short_12: OMUCQ3RKNUN5 · pith_short_16: OMUCQ3RKNUN5WYMA · pith_short_8: OMUCQ3RK

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/OMUCQ3RKNUN5WYMAJETUHFLLSG \
  | 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: 7328286e2a6d1bdb6180492743956b919255b8a4048ff7bd2d52aebdd94ee5b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e70ba6d8f8553a07cc519dca14bc147afbcc960a39d0c55ab0ca58eda3b1a62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2010-08-17T16:55:24Z",
    "title_canon_sha256": "020b061416da9499412eecdcf6b9cfef1a67464c2ba01403463ac2e379452cce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2933",
    "kind": "arxiv",
    "version": 1
  }
}