Pith Number

pith:SRWEHRXB

pith:2016:SRWEHRXBXLP4DP6YBP4MCOIQSX

not attested not anchored not stored refs pending

The pseudo-fundamental group-scheme

Arijit Dey, Marco Antei

arxiv:1602.04644 v2 · 2016-02-15 · 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{SRWEHRXBXLP4DP6YBP4MCOIQSX}

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	2026-05-17T23:47:08.870152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

946c43c6e1badfc1bfd80bf8c1391095f62ee8345ab71673ba43f17d285a1c67

Aliases

arxiv: 1602.04644 · arxiv_version: 1602.04644v2 · doi: 10.48550/arxiv.1602.04644 · pith_short_12: SRWEHRXBXLP4 · pith_short_16: SRWEHRXBXLP4DP6Y · pith_short_8: SRWEHRXB

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/SRWEHRXBXLP4DP6YBP4MCOIQSX \
  | 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: 946c43c6e1badfc1bfd80bf8c1391095f62ee8345ab71673ba43f17d285a1c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ee5325b6627231aef7066d5b134c45a3f57abffaf85b40922b0d8b56fd083e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-02-15T11:55:26Z",
    "title_canon_sha256": "280e7d8fc1d6348689d3e1a33e70889a807fa80ddcfb8cde7fff33096dde43d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04644",
    "kind": "arxiv",
    "version": 2
  }
}