Pith Number

pith:EED4JA57

pith:2017:EED4JA57H5BSNUWZ77RIOZZBPR

not attested not anchored not stored refs pending

Hyperfield Grassmannians

James F. Davis, Laura Anderson

arxiv:1710.00016 v2 · 2017-09-29 · math.CO · math.AG · math.AT · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EED4JA57H5BSNUWZ77RIOZZBPR}

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	2026-05-18T00:01:38.953430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2107c483bf3f4326d2d9ffe28767217c57a25420c929c7c1e1707f9a26169edb

Aliases

arxiv: 1710.00016 · arxiv_version: 1710.00016v2 · doi: 10.48550/arxiv.1710.00016 · pith_short_12: EED4JA57H5BS · pith_short_16: EED4JA57H5BSNUWZ · pith_short_8: EED4JA57

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/EED4JA57H5BSNUWZ77RIOZZBPR \
  | 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: 2107c483bf3f4326d2d9ffe28767217c57a25420c929c7c1e1707f9a26169edb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e21974b19063a1150e9b57bcbc53c1341838bd92970a182a3853c3a9ca25dfe6",
    "cross_cats_sorted": [
      "math.AG",
      "math.AT",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-29T18:08:18Z",
    "title_canon_sha256": "c54e352bd4c9998911fc48210b4539f2a8b3793442680eeeb354ecded5971831"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00016",
    "kind": "arxiv",
    "version": 2
  }
}