Pith Number

pith:FWRTD244

pith:2013:FWRTD244WRZDT3VJP7NJQFFMJE

not attested not anchored not stored refs pending

Unstable operations in \'etale and motivic cohomology

Bertrand Guillou, Charles Weibel

arxiv:1301.0872 v1 · 2013-01-05 · 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{FWRTD244WRZDT3VJP7NJQFFMJE}

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	2026-05-18T03:37:07.477690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2da331eb9cb47239eea97fda9814ac492d7ee5e79aa87cbacc28184dcbe374cc

Aliases

arxiv: 1301.0872 · arxiv_version: 1301.0872v1 · doi: 10.48550/arxiv.1301.0872 · pith_short_12: FWRTD244WRZD · pith_short_16: FWRTD244WRZDT3VJ · pith_short_8: FWRTD244

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/FWRTD244WRZDT3VJP7NJQFFMJE \
  | 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: 2da331eb9cb47239eea97fda9814ac492d7ee5e79aa87cbacc28184dcbe374cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac51e9097d2c58ee1b84f88f4e8d9986118f7e4a7c7dc665f2d28b4b03a218d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2013-01-05T04:57:42Z",
    "title_canon_sha256": "2321ac2bb5bf3fc8746863d05ede1c62b0957343429959edeaed396103e16cbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0872",
    "kind": "arxiv",
    "version": 1
  }
}