Pith Number

pith:P2RIAGQ2

pith:2004:P2RIAGQ2TL7QD37DL3EGL3Y7LZ

not attested not anchored not stored refs pending

Quenched millimetre emission from Cygnus X-1 in a soft X-ray state

E. Gallo, G.G. Poo ley, R.P. Fender, R.P.J. Tilanus, S.P. Tigelaar (Amsterdam)

arxiv:astro-ph/0405141 v1 · 2004-05-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2RIAGQ2TL7QD37DL3EGL3Y7LZ}

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	2026-07-04T16:43:43.296138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ea2801a1a9aff01efe35ec865ef1f5e73148262b751917ec770006b2b736b3c

Aliases

arxiv: astro-ph/0405141 · arxiv_version: astro-ph/0405141v1 · doi: 10.48550/arxiv.astro-ph/0405141 · pith_short_12: P2RIAGQ2TL7Q · pith_short_16: P2RIAGQ2TL7QD37D · pith_short_8: P2RIAGQ2

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/P2RIAGQ2TL7QD37DL3EGL3Y7LZ \
  | 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: 7ea2801a1a9aff01efe35ec865ef1f5e73148262b751917ec770006b2b736b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6193f42a60c4505332133b3dfe5b2f5164af5b24bb84a0ce16d079fa7049c715",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-05-07T11:41:45Z",
    "title_canon_sha256": "f4cc075603cdc09ddd1f2da7a84dc1e1e6e8a3d31f7470801ab88157222730ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0405141",
    "kind": "arxiv",
    "version": 1
  }
}