Pith Number

pith:B6WYS2NB

pith:2004:B6WYS2NBUEJB2GFVMA6SXAKCKC

not attested not anchored not stored refs pending

Constraining the neutron-proton effective mass splitting in neutron-rich matter

Bao-An Li

arxiv:nucl-th/0404040 v1 · 2004-04-15 · 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{B6WYS2NBUEJB2GFVMA6SXAKCKC}

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	2026-05-18T04:18:13.748154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fad8969a1a1121d18b5603d2b814250a4ed8986991b0b47c1e24905c1df97fb

Aliases

arxiv: nucl-th/0404040 · arxiv_version: nucl-th/0404040v1 · doi: 10.48550/arxiv.nucl-th/0404040 · pith_short_12: B6WYS2NBUEJB · pith_short_16: B6WYS2NBUEJB2GFV · pith_short_8: B6WYS2NB

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/B6WYS2NBUEJB2GFVMA6SXAKCKC \
  | 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: 0fad8969a1a1121d18b5603d2b814250a4ed8986991b0b47c1e24905c1df97fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd533b9648e1b0a6c74159fb69fae0ae7e01c1c31f33ac431e98dde1a82a812a",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "",
    "primary_cat": "nucl-th",
    "submitted_at": "2004-04-15T22:24:18Z",
    "title_canon_sha256": "150187f6cf78f729f9581fd0bccb0f5dd748f53e9031ecffa322a36757c5f190"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-th/0404040",
    "kind": "arxiv",
    "version": 1
  }
}