Pith Number

pith:XG7B32FS

pith:2021:XG7B32FSCOIGM5MCWGGF5QKVMY

not attested not anchored not stored refs pending

The IBISCO survey: I. Multiphase discs and winds in the Seyfert galaxy Markarian 509

A. Bongiorno, A. Malizia, A. Travascio, C. Feruglio, C. Gruppioni, E. Piconcelli, F. Fiore, F. Tombesi, M. Bischetti, M. Dadina, M. Molina, M.V. Zanchettin

arxiv:2107.06756 v1 · 2021-07-14 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XG7B32FSCOIGM5MCWGGF5QKVMY}

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	2026-07-05T03:29:50.859280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9be1de8b21390667582b18c5ec155662a221747db8ef97988cab7da526718a1

Aliases

arxiv: 2107.06756 · arxiv_version: 2107.06756v1 · doi: 10.48550/arxiv.2107.06756 · pith_short_12: XG7B32FSCOIG · pith_short_16: XG7B32FSCOIGM5MC · pith_short_8: XG7B32FS

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/XG7B32FSCOIGM5MCWGGF5QKVMY \
  | 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: b9be1de8b21390667582b18c5ec155662a221747db8ef97988cab7da526718a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42817563037695cf53df18b1f62bca7e4a1ad70a12f7f56fc800ece8808238d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-07-14T15:09:41Z",
    "title_canon_sha256": "e3751934802ac3147127f829604df9683139ef6d748a6dd9cbe250a468c5e808"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.06756",
    "kind": "arxiv",
    "version": 1
  }
}