Pith Number

pith:BPZNBVYY

pith:2015:BPZNBVYYC3C54RV6IW4YF5AJTX

not attested not anchored not stored refs pending

The H\'enon-Lane-Emden system: a sharp nonexistence result

Andrea Carioli, Roberta Musina

arxiv:1504.02253 v1 · 2015-04-09 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPZNBVYYC3C54RV6IW4YF5AJTX}

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	2026-05-18T02:19:15.615662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bf2d0d71816c5de46be45b982f4099dfdd9f78c035235b97ace44c46ab434e6

Aliases

arxiv: 1504.02253 · arxiv_version: 1504.02253v1 · doi: 10.48550/arxiv.1504.02253 · pith_short_12: BPZNBVYYC3C5 · pith_short_16: BPZNBVYYC3C54RV6 · pith_short_8: BPZNBVYY

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/BPZNBVYYC3C54RV6IW4YF5AJTX \
  | 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: 0bf2d0d71816c5de46be45b982f4099dfdd9f78c035235b97ace44c46ab434e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abedc627629fd072d757a3ff14318da323e6d7dfab2141d937d58fa7d13edd37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-04-09T10:53:32Z",
    "title_canon_sha256": "a16cf5634f69a010d775aa938d7a1fc4919a0c0de5f5b6869f3ee5a43e98279c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02253",
    "kind": "arxiv",
    "version": 1
  }
}