Pith Number

pith:J2YHWHDC

pith:2010:J2YHWHDCF2EOQ6ADBMLIZ6SKSK

not attested not anchored not stored refs pending

Enhanced Detectability of Pre-reionization 21-cm Structure

Marcelo A. Alvarez, Tzu-Ching Chang, Ue-Li Pen

arxiv:1007.0001 v1 · 2010-06-30 · 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{J2YHWHDCF2EOQ6ADBMLIZ6SKSK}

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	2026-05-18T02:06:33.679718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eb07b1c622e88e878030b168cfa4a928f1e995f1fe5eb21eb265d389fecd5e4

Aliases

arxiv: 1007.0001 · arxiv_version: 1007.0001v1 · doi: 10.48550/arxiv.1007.0001 · pith_short_12: J2YHWHDCF2EO · pith_short_16: J2YHWHDCF2EOQ6AD · pith_short_8: J2YHWHDC

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/J2YHWHDCF2EOQ6ADBMLIZ6SKSK \
  | 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: 4eb07b1c622e88e878030b168cfa4a928f1e995f1fe5eb21eb265d389fecd5e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a53dfb4cfa060660cf9f772e305610ca7a38160da7048e99cdbd0106ae820f3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-30T20:00:01Z",
    "title_canon_sha256": "f2b7c21b7fef9f2cdf728a0c1e377e81bb61a2e64b2faac6270e645e5e761ca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0001",
    "kind": "arxiv",
    "version": 1
  }
}