Pith Number

pith:CJBK2CHQ

pith:2018:CJBK2CHQ4YS3TKHVET3GO6FEFB

not attested not anchored not stored refs pending

Scattering of Dirac fermions by spherical massive bodies

Ciprian A. Sporea, Ion I. Cotaescu

arxiv:1811.07723 v2 · 2018-11-19 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CJBK2CHQ4YS3TKHVET3GO6FEFB}

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	2026-05-17T23:56:29.167984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1242ad08f0e625b9a8f524f66778a42868199cfbfeda3c921cffe2f1c45a696d

Aliases

arxiv: 1811.07723 · arxiv_version: 1811.07723v2 · doi: 10.48550/arxiv.1811.07723 · pith_short_12: CJBK2CHQ4YS3 · pith_short_16: CJBK2CHQ4YS3TKHV · pith_short_8: CJBK2CHQ

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/CJBK2CHQ4YS3TKHVET3GO6FEFB \
  | 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: 1242ad08f0e625b9a8f524f66778a42868199cfbfeda3c921cffe2f1c45a696d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf156358b7fbb8aa6aa44995037baf327fa399ad352d9b14a438c5c1bb65a12b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-11-19T14:29:42Z",
    "title_canon_sha256": "3c087eba5e8f11376ed03c94610451be92e4c8076efdbdb2f168722593c0f1ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07723",
    "kind": "arxiv",
    "version": 2
  }
}