Pith Number

pith:DKYOAE4J

pith:2009:DKYOAE4JV7HG5V3JD3FZ5FW4OO

not attested not anchored not stored refs pending

Extracting the neutron-neutron scattering length -- recent developments

Anders Gardestig

arxiv:0904.2787 v1 · 2009-04-17 · nucl-th · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKYOAE4JV7HG5V3JD3FZ5FW4OO}

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	2026-07-04T15:44:49.899382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d

Aliases

arxiv: 0904.2787 · arxiv_version: 0904.2787v1 · doi: 10.48550/arxiv.0904.2787 · pith_short_12: DKYOAE4JV7HG · pith_short_16: DKYOAE4JV7HG5V3J · pith_short_8: DKYOAE4J

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/DKYOAE4JV7HG5V3JD3FZ5FW4OO \
  | 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: 1ab0e01389afce6ed7691ecb9e96dc73928e932a9dcf52b248246a43c19ae90d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e32d33a6e75efe512095728b7772f4941f4dbb37a53db7d833a618e260a9f738",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2009-04-17T21:43:15Z",
    "title_canon_sha256": "1811d312a624664ad4294f6bd35d329e4389391222388eec1b093c28c6351d0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2787",
    "kind": "arxiv",
    "version": 1
  }
}