Pith Number

pith:6SWIQ5TL

pith:2019:6SWIQ5TLQLH4RZK22T4JLJPWFE

not attested not anchored not stored refs pending

Rigid Graph Alignment

Ananth Grama, David F. Gleich, Huda Nassar, Vikram Ravindra

arxiv:1908.03201 v1 · 2019-08-09 · cs.SI · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6SWIQ5TLQLH4RZK22T4JLJPWFE}

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	2026-07-04T23:52:27.200905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ac88766b82cfc8e55ad4f895a5f629121355e4ccfa531418c9bc881bfb595f

Aliases

arxiv: 1908.03201 · arxiv_version: 1908.03201v1 · doi: 10.48550/arxiv.1908.03201 · pith_short_12: 6SWIQ5TLQLH4 · pith_short_16: 6SWIQ5TLQLH4RZK2 · pith_short_8: 6SWIQ5TL

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/6SWIQ5TLQLH4RZK22T4JLJPWFE \
  | 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: f4ac88766b82cfc8e55ad4f895a5f629121355e4ccfa531418c9bc881bfb595f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f23b66522391d3c6a8539a9f683249f00572087d3b722d35b2c82a9bb45832e2",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-08-09T02:24:29Z",
    "title_canon_sha256": "1d27d4040dbe8580bfbd16d61a6d94daf9b7f8eb9be28109c34c0b13f1e5e300"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03201",
    "kind": "arxiv",
    "version": 1
  }
}