Pith Number

pith:IMJODG3R

pith:2012:IMJODG3RRIAKFAJU6DFMDBLGAD

not attested not anchored not stored refs pending

The 2.35 year itch of Cyg OB2 #9. II. Radio monitoring

D. Volpi, E.R. Parkin, J.M. Pittard, M. De Becker, O. Absil, R. Blomme, R.K. Prinja, Y. Naze

arxiv:1212.2381 v1 · 2012-12-11 · astro-ph.SR · 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{IMJODG3RRIAKFAJU6DFMDBLGAD}

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	2026-07-05T01:57:43.716254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4312e19b718a00a28134f0cac1856600e20d67d39c1bed4d8cdbcd1c9b52a534

Aliases

arxiv: 1212.2381 · arxiv_version: 1212.2381v1 · doi: 10.48550/arxiv.1212.2381 · pith_short_12: IMJODG3RRIAK · pith_short_16: IMJODG3RRIAKFAJU · pith_short_8: IMJODG3R

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/IMJODG3RRIAKFAJU6DFMDBLGAD \
  | 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: 4312e19b718a00a28134f0cac1856600e20d67d39c1bed4d8cdbcd1c9b52a534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c45db501cf4e80b6e948233f1c650ddba32921fa6ad13fa9c4d91351e1c0586",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-11T10:54:41Z",
    "title_canon_sha256": "a4cf1539618054ece2ce2968953343996b183298f980e512c6acde690510b9fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2381",
    "kind": "arxiv",
    "version": 1
  }
}