Pith Number

pith:BRJ3FC6S

pith:2021:BRJ3FC6SWTFDS74C2PTFSW6LSC

not attested not anchored not stored refs pending

Accretion processes in the galaxy cluster Hydra A/Abell 780

C. Innocentin, M. Girardi, M. Nonino, S. De Grandi, W. Boschin

arxiv:2112.09056 v1 · 2021-12-16 · astro-ph.CO · 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{BRJ3FC6SWTFDS74C2PTFSW6LSC}

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	2026-07-05T04:04:28.128914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c53b28bd2b4ca397f82d3e6595bcb90b54daecd4ce9ba62b9086eb7093ea597

Aliases

arxiv: 2112.09056 · arxiv_version: 2112.09056v1 · doi: 10.48550/arxiv.2112.09056 · pith_short_12: BRJ3FC6SWTFD · pith_short_16: BRJ3FC6SWTFDS74C · pith_short_8: BRJ3FC6S

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/BRJ3FC6SWTFDS74C2PTFSW6LSC \
  | 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: 0c53b28bd2b4ca397f82d3e6595bcb90b54daecd4ce9ba62b9086eb7093ea597

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "042e579b8938d0089e9ff430d87d89e97d7212169a3146624847d7005c408969",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-12-16T17:52:06Z",
    "title_canon_sha256": "d3d76d21b1819e807cfc810c70752d524dde36dc7b38dee067065cebfc66e0f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.09056",
    "kind": "arxiv",
    "version": 1
  }
}