Pith Number

pith:O2KBTLEA

pith:2017:O2KBTLEA7MEDPNM7TNSRSEA7R7

not attested not anchored not stored refs pending

On relative grothendieck rings and algebraically constructible functions

Goulwen Fichou (IRMAR)

arxiv:1703.09915 v1 · 2017-03-29 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2KBTLEA7MEDPNM7TNSRSEA7R7}

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	2026-05-18T00:47:39.025273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769419ac80fb0837b59f9b6519101f8fdad5f65e79714a1bfce14986a5115f9d

Aliases

arxiv: 1703.09915 · arxiv_version: 1703.09915v1 · doi: 10.48550/arxiv.1703.09915 · pith_short_12: O2KBTLEA7MED · pith_short_16: O2KBTLEA7MEDPNM7 · pith_short_8: O2KBTLEA

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/O2KBTLEA7MEDPNM7TNSRSEA7R7 \
  | 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: 769419ac80fb0837b59f9b6519101f8fdad5f65e79714a1bfce14986a5115f9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af73b592d3a3ffbc2c98ee85ef9c468f3a6c0af879c463f1eb065480b3bf8ab7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-29T07:31:04Z",
    "title_canon_sha256": "6bc5255d26bdbb81000eb7bc54152d31a69670605589a1d8a393f948c8080b83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09915",
    "kind": "arxiv",
    "version": 1
  }
}