Pith Number

pith:QCR3N7Q4

pith:2016:QCR3N7Q4AH2G2AAO2YVMKZ7UIW

not attested not anchored not stored refs pending

Spectral analysis for differential systems with a singularity

Mikhail Ignatyev

arxiv:1606.01563 v1 · 2016-06-05 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCR3N7Q4AH2G2AAO2YVMKZ7UIW}

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	2026-05-18T01:12:53.966737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80a3b6fe1c01f46d000ed62ac567f445a3e54a87fb4b2c2fe958faa927af09fe

Aliases

arxiv: 1606.01563 · arxiv_version: 1606.01563v1 · doi: 10.48550/arxiv.1606.01563 · pith_short_12: QCR3N7Q4AH2G · pith_short_16: QCR3N7Q4AH2G2AAO · pith_short_8: QCR3N7Q4

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/QCR3N7Q4AH2G2AAO2YVMKZ7UIW \
  | 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: 80a3b6fe1c01f46d000ed62ac567f445a3e54a87fb4b2c2fe958faa927af09fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb6da2c0251d854217fb7db33c7b5975fea51a62787fa83b2a63a6e998afdadb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2016-06-05T21:19:15Z",
    "title_canon_sha256": "21feb721d3cb447096548e8f23f59ec0b64d1a18bbbffc4cf5b8bcd5fde765b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01563",
    "kind": "arxiv",
    "version": 1
  }
}