Pith Number

pith:T7DGFZX3

pith:2019:T7DGFZX3MXVNA24RH64JXCKBLN

not attested not anchored not stored refs pending

A Rigorous Derivation of the Hamiltonian Structure for the Nonlinear Schr\"odinger Equation

Andrea R. Nahmod, Dana Mendelson, Gigliola Staffilani, Matthew Rosenzweig, Nata\v{s}a Pavlovi\'c

arxiv:1908.03847 v1 · 2019-08-11 · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T7DGFZX3MXVNA24RH64JXCKBLN}

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	2026-07-04T23:53:18.813628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fc662e6fb65ead06b913fb89b89415b55b51a2ffbf2b0a4dd2264f71799528f

Aliases

arxiv: 1908.03847 · arxiv_version: 1908.03847v1 · doi: 10.48550/arxiv.1908.03847 · pith_short_12: T7DGFZX3MXVN · pith_short_16: T7DGFZX3MXVNA24R · pith_short_8: T7DGFZX3

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/T7DGFZX3MXVNA24RH64JXCKBLN \
  | 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: 9fc662e6fb65ead06b913fb89b89415b55b51a2ffbf2b0a4dd2264f71799528f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8582c056815ea856b20cadacd7c65fae95b66b770d1ab80e4c9ae868a9f7533c",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-08-11T03:59:57Z",
    "title_canon_sha256": "9201061abd68a6b1e1487a05e50f33827e5a8cf39cb9266fdea689980202d5dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03847",
    "kind": "arxiv",
    "version": 1
  }
}