Pith Number

pith:HDB3EXMC

pith:2004:HDB3EXMCI3HYVOCCKAM5WDMJFE

not attested not anchored not stored refs pending

The deformation theory of representations of the fundamental group of a smooth variety

J. P. Pridham

arxiv:math/0401344 v2 · 2004-01-25 · 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{HDB3EXMCI3HYVOCCKAM5WDMJFE}

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	2026-05-17T23:41:31.695043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38c3b25d8246cf8ab8425019db0d892914d085eb137fdb199f94174a80bfe183

Aliases

arxiv: math/0401344 · arxiv_version: math/0401344v2 · doi: 10.48550/arxiv.math/0401344 · pith_short_12: HDB3EXMCI3HY · pith_short_16: HDB3EXMCI3HYVOCC · pith_short_8: HDB3EXMC

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/HDB3EXMCI3HYVOCCKAM5WDMJFE \
  | 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: 38c3b25d8246cf8ab8425019db0d892914d085eb137fdb199f94174a80bfe183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43200513148e7a6cf98875379c100c6aa4d76c1f995cf252e9f73625e332c076",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2004-01-25T17:31:44Z",
    "title_canon_sha256": "e85876bd5cd45707eae02184909a35288a25b5aeca57a5493868090e29c63e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0401344",
    "kind": "arxiv",
    "version": 2
  }
}