Pith Number

pith:BBIRJXV2

pith:2020:BBIRJXV2S7DOM3GTF4JCCKQY7G

not attested not anchored not stored refs pending

Magnetic field amplification in accretion discs around the first stars: implications for the primordial IMF

Christoph Federrath, Dominik R. G. Schleicher, Mark R. Krumholz, Piyush Sharda

arxiv:2007.02678 v2 · 2020-07-06 · astro-ph.GA · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBIRJXV2S7DOM3GTF4JCCKQY7G}

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	2026-07-05T02:17:08.620029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

085114deba97c6e66cd32f12212a18f9baffd6b3ece57c3a334423c1e87be7ce

Aliases

arxiv: 2007.02678 · arxiv_version: 2007.02678v2 · doi: 10.48550/arxiv.2007.02678 · pith_short_12: BBIRJXV2S7DO · pith_short_16: BBIRJXV2S7DOM3GT · pith_short_8: BBIRJXV2

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/BBIRJXV2S7DOM3GTF4JCCKQY7G \
  | 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: 085114deba97c6e66cd32f12212a18f9baffd6b3ece57c3a334423c1e87be7ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d71bab38a21e2382a54d75a3c52c78f7827380bb954c046857b2b012ac1c557",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-06T12:24:27Z",
    "title_canon_sha256": "db04e38aa1fc348b9cafe28eb03811b51bfed216930c38ac645f8e9568ff46c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.02678",
    "kind": "arxiv",
    "version": 2
  }
}