Pith Number

pith:NIXO5JOU

pith:2010:NIXO5JOURUJ66STKJ5JCWOBVTR

not attested not anchored not stored refs pending

HST Spectral Observations near the He II Ly-alpha Break: Implications for He II Reionization

Avery Meiksin, Daryl Haggard, David Syphers, Donald G. York, Donald P. Schneider, Scott F. Anderson, Wei Zheng

arxiv:1011.1946 v1 · 2010-11-09 · 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{NIXO5JOURUJ66STKJ5JCWOBVTR}

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	2026-05-18T02:04:50.203518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a2eeea5d48d13ef4a6a4f522b38359c41bdc8ca2d35703b8708e1c7fd58910f

Aliases

arxiv: 1011.1946 · arxiv_version: 1011.1946v1 · doi: 10.48550/arxiv.1011.1946 · pith_short_12: NIXO5JOURUJ6 · pith_short_16: NIXO5JOURUJ66STK · pith_short_8: NIXO5JOU

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/NIXO5JOURUJ66STKJ5JCWOBVTR \
  | 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: 6a2eeea5d48d13ef4a6a4f522b38359c41bdc8ca2d35703b8708e1c7fd58910f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68f110fc39d3e7483fe2762850d78848072cc84a4d896b453bc40ad8f2fd7e65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-11-09T00:06:40Z",
    "title_canon_sha256": "13bbf1b9b0a2298224eaf50912dfd660d0842460166b8a14eb656a099d8998bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1946",
    "kind": "arxiv",
    "version": 1
  }
}