Pith Number

pith:SH2OU43E

pith:2014:SH2OU43EQDE7BJOXIJ22Y2QC4N

not attested not anchored not stored refs pending

The $\gamma$-filtration on the Witt ring of a scheme

Marcus Zibrowius

arxiv:1411.3198 v2 · 2014-11-12 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SH2OU43EQDE7BJOXIJ22Y2QC4N}

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	2026-05-18T01:09:29.834222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91f4ea736480c9f0a5d74275ac6a02e3687f2c4c372c8815495b6863daf3c557

Aliases

arxiv: 1411.3198 · arxiv_version: 1411.3198v2 · doi: 10.48550/arxiv.1411.3198 · pith_short_12: SH2OU43EQDE7 · pith_short_16: SH2OU43EQDE7BJOX · pith_short_8: SH2OU43E

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/SH2OU43EQDE7BJOXIJ22Y2QC4N \
  | 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: 91f4ea736480c9f0a5d74275ac6a02e3687f2c4c372c8815495b6863daf3c557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "202d2a8aee9c4482663d1f4a0943be28e22fada1cf24d4221ac99adadf5484cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-11-12T15:07:49Z",
    "title_canon_sha256": "d4683e6ed91c19a5c75d3851c0dc6c54e98631082d26d68cd30b15402c6975e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.3198",
    "kind": "arxiv",
    "version": 2
  }
}