Pith Number

pith:ZT2575PJ

pith:2021:ZT2575PJGBPPA3E63BW2UVR6LK

not attested not anchored not stored refs pending

A first Chandra view of the cool core cluster A1668: offset cooling and AGN feedback cycle

Ewan O'Sullivan, Fabio Gastaldello, Fabrizio Brighenti, Myriam Gitti, Pasquale Temi, Stephen Hamer, Thomas Pasini

arxiv:2102.11299 v1 · 2021-02-22 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZT2575PJGBPPA3E63BW2UVR6LK}

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	2026-07-05T02:35:38.721830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf5dff5e9305ef06c9ed86daa563e5a98c4b046d8980d0ccad55218f3864126

Aliases

arxiv: 2102.11299 · arxiv_version: 2102.11299v1 · doi: 10.48550/arxiv.2102.11299 · pith_short_12: ZT2575PJGBPP · pith_short_16: ZT2575PJGBPPA3E6 · pith_short_8: ZT2575PJ

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/ZT2575PJGBPPA3E63BW2UVR6LK \
  | 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: ccf5dff5e9305ef06c9ed86daa563e5a98c4b046d8980d0ccad55218f3864126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34cfa36c8c2e9ce817e04c6e478850c7d463d1c17e15fe6c1bd864b2d06f6fbc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-22T19:00:21Z",
    "title_canon_sha256": "f5ea0eb1ab552707ce26addd89c95834b117fc460c77e310d5248b7e7838407f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.11299",
    "kind": "arxiv",
    "version": 1
  }
}