Pith Number

pith:4EAGZ6KS

pith:2012:4EAGZ6KS2S66PPGCMLCJ4OTCFJ

not attested not anchored not stored refs pending

Inverse backscattering for the Schr\"odinger equation in 2D

Juan Manuel Reyes

arxiv:1209.2779 v1 · 2012-09-13 · 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{4EAGZ6KS2S66PPGCMLCJ4OTCFJ}

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	2026-05-18T03:45:40.998387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1006cf952d4bde7bcc262c49e3a622a416301333e658b9e2c11385f5efcf9ec

Aliases

arxiv: 1209.2779 · arxiv_version: 1209.2779v1 · doi: 10.48550/arxiv.1209.2779 · pith_short_12: 4EAGZ6KS2S66 · pith_short_16: 4EAGZ6KS2S66PPGC · pith_short_8: 4EAGZ6KS

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/4EAGZ6KS2S66PPGCMLCJ4OTCFJ \
  | 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: e1006cf952d4bde7bcc262c49e3a622a416301333e658b9e2c11385f5efcf9ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f6b50d46ec3fe4acd928a6d88c64da75d0bb32730efbbd6271b76c3e60831c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-09-13T04:52:25Z",
    "title_canon_sha256": "adb244aeeb3f6d9a4eb8a5fc60ff049b4359da332b6b83f80e57ad2cc3fab67e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2779",
    "kind": "arxiv",
    "version": 1
  }
}