Pith Number

pith:PFFRTKQF

pith:2018:PFFRTKQFZGFXNXU7543S3ULZGD

not attested not anchored not stored refs pending

Collapse dynamics for the discrete nonlinear Schr\"odinger equation with gain and loss

G. Fotopoulos, K. Vetas, N. I. Karachalios, V. Koukouloyannis

arxiv:1809.08025 v2 · 2018-09-21 · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFFRTKQFZGFXNXU7543S3ULZGD}

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	2026-05-17T23:55:11.738394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

794b19aa05c98b76de9fef372dd17930cc0cb0f06559f40d6d7ea6f5dda62d7a

Aliases

arxiv: 1809.08025 · arxiv_version: 1809.08025v2 · doi: 10.48550/arxiv.1809.08025 · pith_short_12: PFFRTKQFZGFX · pith_short_16: PFFRTKQFZGFXNXU7 · pith_short_8: PFFRTKQF

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/PFFRTKQFZGFXNXU7543S3ULZGD \
  | 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: 794b19aa05c98b76de9fef372dd17930cc0cb0f06559f40d6d7ea6f5dda62d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8c980272bd7f40870f6164b47fb1a680150151ea68dcaf9d22ff988ca7f4981",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2018-09-21T10:35:47Z",
    "title_canon_sha256": "76c246b6dd0dca22de6a955a947475ef9e5b064bcdd3dd4739634249d7057dcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08025",
    "kind": "arxiv",
    "version": 2
  }
}