Pith Number

pith:RSUL3VM3

pith:2010:RSUL3VM3KS472TPZUDBIO4UJOR

not attested not anchored not stored refs pending

Hydra groups

Tim Riley, Will Dison

arxiv:1002.1945 v2 · 2010-02-09 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RSUL3VM3KS472TPZUDBIO4UJOR}

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	2026-05-18T02:24:38.986776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ca8bdd59b54b9fd4df9a0c287728974454bae47e1547403969c59e607917142

Aliases

arxiv: 1002.1945 · arxiv_version: 1002.1945v2 · doi: 10.48550/arxiv.1002.1945 · pith_short_12: RSUL3VM3KS47 · pith_short_16: RSUL3VM3KS472TPZ · pith_short_8: RSUL3VM3

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/RSUL3VM3KS472TPZUDBIO4UJOR \
  | 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: 8ca8bdd59b54b9fd4df9a0c287728974454bae47e1547403969c59e607917142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1da42650587844fad8be432eb469f5a9ba76db0edee7f616ea688f33549119ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2010-02-09T19:09:48Z",
    "title_canon_sha256": "b78986a88656a47f5b23a998c1543037719b4e0648ea8a2498e579e136368251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1945",
    "kind": "arxiv",
    "version": 2
  }
}