Pith Number

pith:WDL4K6D4

pith:2016:WDL4K6D4N3ZBR6NN6OSKFXBMS3

not attested not anchored not stored refs pending

Energy Spectrum of Fast Second Order Fermi Accelerators as Sources of Ultra-High-Energy Cosmic Rays

Stijn Buitink, Tobias Winchen

arxiv:1612.03675 v2 · 2016-12-12 · 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{WDL4K6D4N3ZBR6NN6OSKFXBMS3}

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	2026-05-18T00:15:30.946334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d7c5787c6ef218f9adf3a4a2dc2c96f3e3856a09f5333250e15efa4e265c04

Aliases

arxiv: 1612.03675 · arxiv_version: 1612.03675v2 · doi: 10.48550/arxiv.1612.03675 · pith_short_12: WDL4K6D4N3ZB · pith_short_16: WDL4K6D4N3ZBR6NN · pith_short_8: WDL4K6D4

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/WDL4K6D4N3ZBR6NN6OSKFXBMS3 \
  | 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: b0d7c5787c6ef218f9adf3a4a2dc2c96f3e3856a09f5333250e15efa4e265c04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3485c56ed976b850c59d6a235add41b7526088acf26688a7986372fdae2b85a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-12T13:50:48Z",
    "title_canon_sha256": "3970279e80365881f34deb8cb4b0d42f5e4a046817c6ccf4a8ca277467f73f18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03675",
    "kind": "arxiv",
    "version": 2
  }
}