Pith Number

pith:PX523XXS

pith:2021:PX523XXSSSFUK3OLJFPODJXTSU

not attested not anchored not stored refs pending

X-Ray Shapes of Elliptical Galaxies and Implications for Self-Interacting Dark Matter

Alex McDaniel, Stefano Profumo, Tesla Jeltema

arxiv:2103.01247 v1 · 2021-03-01 · astro-ph.CO · astro-ph.GA · astro-ph.HE · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PX523XXSSSFUK3OLJFPODJXTSU}

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	2026-07-05T02:41:16.434494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dfbaddef2948b456dcb495ee1a6f3951a540a2b7520b0857ca05bffbe585c5b

Aliases

arxiv: 2103.01247 · arxiv_version: 2103.01247v1 · doi: 10.48550/arxiv.2103.01247 · pith_short_12: PX523XXSSSFU · pith_short_16: PX523XXSSSFUK3OL · pith_short_8: PX523XXS

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/PX523XXSSSFUK3OLJFPODJXTSU \
  | 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: 7dfbaddef2948b456dcb495ee1a6f3951a540a2b7520b0857ca05bffbe585c5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d2398245713cdb2cace9dd3ec5d3b2efadc0abfbe19a20a86d1557def9a0abd",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-03-01T19:01:27Z",
    "title_canon_sha256": "9b1909908bb62188f18dbf6fa2086f6fa7b2267c0cc84b868a809261aef98058"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.01247",
    "kind": "arxiv",
    "version": 1
  }
}