Pith Number

pith:S4IXXHBK

pith:2016:S4IXXHBKC5KZ2VSNXUPNNXYWJQ

not attested not anchored not stored refs pending

The Thermal Proximity Effect: A New Probe of He II Reionization History and the Quasar Lifetime

Ilya S. Khrykin, Joseph F. Hennawi, Matthew McQuinn

arxiv:1611.05583 v2 · 2016-11-17 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S4IXXHBKC5KZ2VSNXUPNNXYWJQ}

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	2026-05-18T00:33:53.007975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97117b9c2a17559d564dbd1ed6df164c26795cf66bc60a9034e7d37cbc4cf8ed

Aliases

arxiv: 1611.05583 · arxiv_version: 1611.05583v2 · doi: 10.48550/arxiv.1611.05583 · pith_short_12: S4IXXHBKC5KZ · pith_short_16: S4IXXHBKC5KZ2VSN · pith_short_8: S4IXXHBK

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/S4IXXHBKC5KZ2VSNXUPNNXYWJQ \
  | 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: 97117b9c2a17559d564dbd1ed6df164c26795cf66bc60a9034e7d37cbc4cf8ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "019013db46fef9f61cf413606c251ee15dda23a26a1a113a0160319fdeedfeeb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-11-17T06:46:48Z",
    "title_canon_sha256": "75216de6985858f6f7ab6ffe6e3a65fcd1dff0280eed269c463a410b604a188f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05583",
    "kind": "arxiv",
    "version": 2
  }
}