Pith Number

pith:QKBNRL3R

pith:2016:QKBNRL3R5NJ7UKKG4MLNSC3KLF

not attested not anchored not stored refs pending

Finite descent obstruction and non-abelian reciprocity

Otto Overkamp

arxiv:1611.05341 v2 · 2016-11-16 · 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{QKBNRL3R5NJ7UKKG4MLNSC3KLF}

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	2026-05-18T00:13:22.175039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8282d8af71eb53fa2946e316d90b6a5965efb00d9dede16c30dd772f0fcc30a8

Aliases

arxiv: 1611.05341 · arxiv_version: 1611.05341v2 · doi: 10.48550/arxiv.1611.05341 · pith_short_12: QKBNRL3R5NJ7 · pith_short_16: QKBNRL3R5NJ7UKKG · pith_short_8: QKBNRL3R

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/QKBNRL3R5NJ7UKKG4MLNSC3KLF \
  | 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: 8282d8af71eb53fa2946e316d90b6a5965efb00d9dede16c30dd772f0fcc30a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40523e70fccf9e44e06a7a20a88861df29066e68789ede919d26e415cc3fd36b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-11-16T16:07:32Z",
    "title_canon_sha256": "6dd5aba996df5fe2f6e29fedbde586e98a30e8d713c65f454310c4290888487f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05341",
    "kind": "arxiv",
    "version": 2
  }
}