Pith Number

pith:2D2X5ZTI

pith:2025:2D2X5ZTI2YL3V5JPWDMOYXDOQW

not attested not anchored not stored refs pending

The Intergalactic Medium

Nicolas Tejos

arxiv:2504.12539 v1 · 2025-04-17 · 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{2D2X5ZTI2YL3V5JPWDMOYXDOQW}

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.

Cited by

2 papers in Pith

Lyman-$\alpha$ forest constraints on pure and mixed fuzzy dark matter

Studying HI and the Cosmic Web in the Era of SKA

Receipt and verification

First computed	2026-07-05T10:50:18.050092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0f57ee668d617baf52fb0d8ec5c6e85876b02032b73bf6459bc19a0d8479d9e

Aliases

arxiv: 2504.12539 · arxiv_version: 2504.12539v1 · doi: 10.48550/arxiv.2504.12539 · pith_short_12: 2D2X5ZTI2YL3 · pith_short_16: 2D2X5ZTI2YL3V5JP · pith_short_8: 2D2X5ZTI

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/2D2X5ZTI2YL3V5JPWDMOYXDOQW \
  | 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: d0f57ee668d617baf52fb0d8ec5c6e85876b02032b73bf6459bc19a0d8479d9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c98f878b501da45ffe05b8845138c807b2ab23763dca67deda6c2a2f3dc0b133",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-04-17T00:03:37Z",
    "title_canon_sha256": "92807b2bd2b61720b9af0e7cb1464639911aa977b0ec0822904dd5ad650a9a30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12539",
    "kind": "arxiv",
    "version": 1
  }
}