Pith Number

pith:Z2MEZTNP

pith:2014:Z2MEZTNP6L4IUUFNGQ6E7HFFSY

not attested not anchored not stored refs pending

Filtrations, 1-parameter Subgroups, and Rational Injectivity

Eric M. Friedlander

arxiv:1408.2918 v2 · 2014-08-13 · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z2MEZTNP6L4IUUFNGQ6E7HFFSY}

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	2026-05-18T01:29:21.707285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce984ccdaff2f88a50ad343c4f9ca5961bb527f47c59c05d33f095a6a69b2310

Aliases

arxiv: 1408.2918 · arxiv_version: 1408.2918v2 · doi: 10.48550/arxiv.1408.2918 · pith_short_12: Z2MEZTNP6L4I · pith_short_16: Z2MEZTNP6L4IUUFN · pith_short_8: Z2MEZTNP

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/Z2MEZTNP6L4IUUFNGQ6E7HFFSY \
  | 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: ce984ccdaff2f88a50ad343c4f9ca5961bb527f47c59c05d33f095a6a69b2310

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2c13ffac2cf179260b00571db93cf97e3ef4468d1bc50fde8f174cb14ac6697",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2014-08-13T05:51:59Z",
    "title_canon_sha256": "2ee3c6dc078fd742004d5a05d7a91722523c014c450ba0b1acd350e267e1caaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2918",
    "kind": "arxiv",
    "version": 2
  }
}