Pith Number

pith:4EP7E5WS

pith:2017:4EP7E5WSP2LVAPDGV6OIHOZSXD

not attested not anchored not stored refs pending

A tale of seven narrow spikes and a long trough: constraining the timing of the percolation of HII bubbles at the tail-end of reionization with ULAS J1120+0641

Ewald Puchwein, Jonathan Chardin, Martin G. Haehnelt, Sarah E.I. Bosman

arxiv:1707.03841 v2 · 2017-07-12 · 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{4EP7E5WSP2LVAPDGV6OIHOZSXD}

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	2026-05-18T00:16:08.919742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e11ff276d27e97503c66af9c83bb32b8f834b29eb237ac24fe033bf8b0533107

Aliases

arxiv: 1707.03841 · arxiv_version: 1707.03841v2 · doi: 10.48550/arxiv.1707.03841 · pith_short_12: 4EP7E5WSP2LV · pith_short_16: 4EP7E5WSP2LVAPDG · pith_short_8: 4EP7E5WS

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/4EP7E5WSP2LVAPDGV6OIHOZSXD \
  | 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: e11ff276d27e97503c66af9c83bb32b8f834b29eb237ac24fe033bf8b0533107

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76c29e4e62d6bacd473f006f51f2144be3eda8c8f8858cb18b6ede5ba24775a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-07-12T18:00:13Z",
    "title_canon_sha256": "6b744aadedc8cf2d3e7c9252d3b7078c268c4218ddfda3c7822440892c30eb8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03841",
    "kind": "arxiv",
    "version": 2
  }
}