Pith Number

pith:ZA7ULYZX

pith:2012:ZA7ULYZXFJQVLI7GNTFVFPKOI4

not attested not anchored not stored refs pending

Preliminary evidence for a virial shock around the Coma galaxy cluster

Abraham Loeb, Doron Kushnir, Eli Waxman, Uri Keshet

arxiv:1210.1574 v4 · 2012-10-04 · astro-ph.CO · 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{ZA7ULYZXFJQVLI7GNTFVFPKOI4}

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	2026-05-18T00:30:49.808597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c83f45e3372a6155a3e66ccb52bd4e470c6799162f30f08e3c5b7db32680628f

Aliases

arxiv: 1210.1574 · arxiv_version: 1210.1574v4 · doi: 10.48550/arxiv.1210.1574 · pith_short_12: ZA7ULYZXFJQV · pith_short_16: ZA7ULYZXFJQVLI7G · pith_short_8: ZA7ULYZX

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/ZA7ULYZXFJQVLI7GNTFVFPKOI4 \
  | 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: c83f45e3372a6155a3e66ccb52bd4e470c6799162f30f08e3c5b7db32680628f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc570f8e74e8d8e65d7691088bc21a468fa83998e4a475c85d4a40319b89e25f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-04T20:00:01Z",
    "title_canon_sha256": "7052bae006913c79fadccc40e4184a33259baa1335e2ec165e9d2d3b548128e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1574",
    "kind": "arxiv",
    "version": 4
  }
}