Pith Number

pith:U4GFBN4D

pith:2015:U4GFBN4DHPLJ7HOEDAQEI4VCR6

not attested not anchored not stored refs pending

Blue Wings and Bumps via Fermi-like Acceleration of Lyman-alpha photons across Shocks

Andrew S. Chung, Benedetta Ciardi, Mark Dijkstra, Max Gronke

arxiv:1509.07364 v1 · 2015-09-24 · 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{U4GFBN4DHPLJ7HOEDAQEI4VCR6}

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	2026-05-18T01:26:41.376338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70c50b7833bd69f9dc418204472a28fb2afaf8582ac54e84e3af1da500dfc5a

Aliases

arxiv: 1509.07364 · arxiv_version: 1509.07364v1 · doi: 10.48550/arxiv.1509.07364 · pith_short_12: U4GFBN4DHPLJ · pith_short_16: U4GFBN4DHPLJ7HOE · pith_short_8: U4GFBN4D

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/U4GFBN4DHPLJ7HOEDAQEI4VCR6 \
  | 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: a70c50b7833bd69f9dc418204472a28fb2afaf8582ac54e84e3af1da500dfc5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61c4122ae0cb8c66912c9e65d183734222aeee4bbf50bbf0a447ec0a5bfcaf68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-24T13:30:10Z",
    "title_canon_sha256": "7f9ad2e6caf9dda18329a77168f60a6f53c101c35df84271d84c3d4ee7138f11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07364",
    "kind": "arxiv",
    "version": 1
  }
}