Pith Number

pith:FNK4ULJM

pith:2000:FNK4ULJMLMR5SRBEUJV6S7XI66

not attested not anchored not stored refs pending

Can the gamma-ray source 3EG J2033+4118 be produced by the stellar system Cyg OB2 No.5?

Diego F. Torres, Gustavo E. Romero, I.R. Stevens, P. Benaglia

arxiv:astro-ph/0010605 v2 · 2000-10-30 · astro-ph · 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{FNK4ULJMLMR5SRBEUJV6S7XI66}

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	2026-07-04T16:17:30.343719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b55ca2d2c5b23d94424a26be97ee8f782d84862d45d160a330242fe0f517d06

Aliases

arxiv: astro-ph/0010605 · arxiv_version: astro-ph/0010605v2 · doi: 10.48550/arxiv.astro-ph/0010605 · pith_short_12: FNK4ULJMLMR5 · pith_short_16: FNK4ULJMLMR5SRBE · pith_short_8: FNK4ULJM

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/FNK4ULJMLMR5SRBEUJV6S7XI66 \
  | 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: 2b55ca2d2c5b23d94424a26be97ee8f782d84862d45d160a330242fe0f517d06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae061b00079d12d650d92c23c26a2137d6d73919c3e39eb6316790e547a4d397",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-30T11:40:09Z",
    "title_canon_sha256": "52d9ef92c878eb3f1cf445a6fc78ddd5f5c5019e44db4f61a25743f07979201f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010605",
    "kind": "arxiv",
    "version": 2
  }
}