Pith Number

pith:DO5YVBP5

pith:2019:DO5YVBP5YWT5ZAFN6XMBC3D63A

not attested not anchored not stored refs pending

On an example concerning the second rigidity theorem

Arash Sadeghi, Hiroki Matsui, Olgur Celikbas

arxiv:1908.02167 v1 · 2019-08-06 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DO5YVBP5YWT5ZAFN6XMBC3D63A}

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	2026-07-04T23:51:51.728551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bbb8a85fdc5a7dc80adf5d8116c7ed831058ada99169e2c3cb8087d16a6073d

Aliases

arxiv: 1908.02167 · arxiv_version: 1908.02167v1 · doi: 10.48550/arxiv.1908.02167 · pith_short_12: DO5YVBP5YWT5 · pith_short_16: DO5YVBP5YWT5ZAFN · pith_short_8: DO5YVBP5

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/DO5YVBP5YWT5ZAFN6XMBC3D63A \
  | 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: 1bbb8a85fdc5a7dc80adf5d8116c7ed831058ada99169e2c3cb8087d16a6073d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6f5f85733739e21ecaca33c8367e295907b473f3592f3cbe332271f1bb5c52e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2019-08-06T13:54:57Z",
    "title_canon_sha256": "3653e115df5525230337610fdf1c6bb66c32d26bac58e81d3b67de78949a7b89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02167",
    "kind": "arxiv",
    "version": 1
  }
}