Pith Number

pith:EEZZ6FCL

pith:2015:EEZZ6FCL2Y7CUTPR4UW2HVG5CQ

not attested not anchored not stored refs pending

The curvature problem for formal and infinitesimal deformations

Michel Van den Bergh, Wendy Lowen

arxiv:1505.03698 v2 · 2015-05-14 · 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{EEZZ6FCL2Y7CUTPR4UW2HVG5CQ}

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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.

Cited by

1 paper in Pith

Deformations of triangulated categories with t-structures via derived injectives

Receipt and verification

First computed	2026-05-18T01:33:24.018657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21339f144bd63e2a4df1e52da3d4dd141d1ec300c97bca673e27b827c9f44414

Aliases

arxiv: 1505.03698 · arxiv_version: 1505.03698v2 · doi: 10.48550/arxiv.1505.03698 · pith_short_12: EEZZ6FCL2Y7C · pith_short_16: EEZZ6FCL2Y7CUTPR · pith_short_8: EEZZ6FCL

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/EEZZ6FCL2Y7CUTPR4UW2HVG5CQ \
  | 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: 21339f144bd63e2a4df1e52da3d4dd141d1ec300c97bca673e27b827c9f44414

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e1e491ecfb9d0a0f21e6ce9b56030649e952b7bb20069d6c63c82739c54d4fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2015-05-14T12:10:34Z",
    "title_canon_sha256": "361bda3b02773b29075d1fff9831ad4c9c9085ffb0ddfe5eaedeac3e206809b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03698",
    "kind": "arxiv",
    "version": 2
  }
}