Pith Number

pith:2TQMQ6QN

pith:2019:2TQMQ6QNXXCVA2S6E23PXLCF5L

not attested not anchored not stored refs pending

Eigenvalue estimates via H\"{o}mander's $L^2$-method

Li Lin, Qingchun Ji

arxiv:1907.03214 v2 · 2019-07-07 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TQMQ6QNXXCVA2S6E23PXLCF5L}

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	2026-05-17T23:40:38.556601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4e0c87a0dbdc5506a5e26b6fbac45eac62bc82ae546d821f5ffbd85a655d81b

Aliases

arxiv: 1907.03214 · arxiv_version: 1907.03214v2 · doi: 10.48550/arxiv.1907.03214 · pith_short_12: 2TQMQ6QNXXCV · pith_short_16: 2TQMQ6QNXXCVA2S6 · pith_short_8: 2TQMQ6QN

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/2TQMQ6QNXXCVA2S6E23PXLCF5L \
  | 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: d4e0c87a0dbdc5506a5e26b6fbac45eac62bc82ae546d821f5ffbd85a655d81b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aae11079b94c24f3eab90dddb2a5e1a11e40c151789afcbb72aefab298d564fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-07-07T02:31:31Z",
    "title_canon_sha256": "1211534954c38395c4680bb3d40cc92f1fba893060cfe1cc31d94558d61be51d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03214",
    "kind": "arxiv",
    "version": 2
  }
}