Pith Number

pith:TV4U3CWH

pith:2009:TV4U3CWHSSWHAREJGHBOTC64TY

not attested not anchored not stored refs pending

Relativistic Variable Eddington Factor

J. Fukue

arxiv:0904.2803 v1 · 2009-04-18 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TV4U3CWHSSWHAREJGHBOTC64TY}

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	2026-05-18T02:13:59.279567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d794d8ac794ac70448931c2e98bdc9e3d949383908bc9fd4da2ebc52f931f6d

Aliases

arxiv: 0904.2803 · arxiv_version: 0904.2803v1 · doi: 10.48550/arxiv.0904.2803 · pith_short_12: TV4U3CWHSSWH · pith_short_16: TV4U3CWHSSWHAREJ · pith_short_8: TV4U3CWH

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/TV4U3CWHSSWHAREJGHBOTC64TY \
  | 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: 9d794d8ac794ac70448931c2e98bdc9e3d949383908bc9fd4da2ebc52f931f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e26ba04e43801de3490d9bd1bcf55e424d9a8e554a247b1e2a4cd02a3347480b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-18T00:37:13Z",
    "title_canon_sha256": "552b6d841f97bf47fde6cf371f9664537489cacf6039b6b5dfaad74f2fc2a465"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2803",
    "kind": "arxiv",
    "version": 1
  }
}