Pith Number

pith:7B2XJ6YY

pith:2017:7B2XJ6YYEPU3DF4PUN4X7UINH6

not attested not anchored not stored refs pending

Strong instability of ground states to a fourth order Schr\"odinger equation

Denis Bonheure, Jean-Baptiste Casteras, Louis Jeanjean, Tianxiang Gou

arxiv:1703.07977 v2 · 2017-03-23 · 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{7B2XJ6YYEPU3DF4PUN4X7UINH6}

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	2026-05-18T00:42:29.186181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87574fb1823e9b1978fa3797fd10d3fbaaeeb7824cdd0d86ec0939fc2114074

Aliases

arxiv: 1703.07977 · arxiv_version: 1703.07977v2 · doi: 10.48550/arxiv.1703.07977 · pith_short_12: 7B2XJ6YYEPU3 · pith_short_16: 7B2XJ6YYEPU3DF4P · pith_short_8: 7B2XJ6YY

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/7B2XJ6YYEPU3DF4PUN4X7UINH6 \
  | 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: f87574fb1823e9b1978fa3797fd10d3fbaaeeb7824cdd0d86ec0939fc2114074

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3fb42a7b66b0ba46e93e7667043a22bc6897cee127b4a1f78472a991c3e8d2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-03-23T09:37:24Z",
    "title_canon_sha256": "d191424fd9a076edb878731aa3437f46dcfd94641add71fefaee86e701102ec5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07977",
    "kind": "arxiv",
    "version": 2
  }
}