Pith Number

pith:EPRSSKE2

pith:2005:EPRSSKE2THH3Q4M3QMXAXGMX6L

not attested not anchored not stored refs pending

The de Rham-Witt and Z_p-cohomologies of an algebraic variety

James S. Milne, Niranjan Ramachandran

arxiv:math/0501380 v1 · 2005-01-22 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPRSSKE2THH3Q4M3QMXAXGMX6L}

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	2026-05-18T01:37:47.787140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e329289a99cfb8719b832e0b9997f2fa33992c9ab70c9ae112c63ab3d63e04

Aliases

arxiv: math/0501380 · arxiv_version: math/0501380v1 · doi: 10.48550/arxiv.math/0501380 · pith_short_12: EPRSSKE2THH3 · pith_short_16: EPRSSKE2THH3Q4M3 · pith_short_8: EPRSSKE2

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/EPRSSKE2THH3Q4M3QMXAXGMX6L \
  | 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: 23e329289a99cfb8719b832e0b9997f2fa33992c9ab70c9ae112c63ab3d63e04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c03e78f1f2327542948a6c36a04559c93bb278d5962e1e5d8407b2f5c9e28d16",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-01-22T17:29:58Z",
    "title_canon_sha256": "23031694d29815bbddad476dbc93fa97b955407c88db3a908f09bb0753e1b965"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0501380",
    "kind": "arxiv",
    "version": 1
  }
}