Pith Number

pith:HBO3DQEG

pith:2018:HBO3DQEG6PTOTSUNPFJAHHX77D

not attested not anchored not stored refs pending

Hunting for Metals Using XQ-100 Legacy Survey Composite Spectra

F. Hamann, G. Becker, G. Cupani, G. Worseck, J. X. Prochaska, K. D. Denney, L. Christensen, S. Cristiani, S. L. Ellison, S. Lopez, S. Perrotta, T. A. M. Berg, V. D'Odorico

arxiv:1808.09995 v1 · 2018-08-29 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HBO3DQEG6PTOTSUNPFJAHHX77D}

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	2026-05-18T00:06:50.257345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

385db1c086f3e6e9ca8d7952039efff8eb1bbd49858826d47d867c76ae697640

Aliases

arxiv: 1808.09995 · arxiv_version: 1808.09995v1 · doi: 10.48550/arxiv.1808.09995 · pith_short_12: HBO3DQEG6PTO · pith_short_16: HBO3DQEG6PTOTSUN · pith_short_8: HBO3DQEG

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/HBO3DQEG6PTOTSUNPFJAHHX77D \
  | 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: 385db1c086f3e6e9ca8d7952039efff8eb1bbd49858826d47d867c76ae697640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07df8239b97cd9e0a92c2a060cca6ec348ffe7ba225293bcc3f691f35bb18bea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-29T18:12:16Z",
    "title_canon_sha256": "2b5562e3cfbb2f90f7ff810331e574e1fce20a8e2c44489c25546b456b4ed8ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09995",
    "kind": "arxiv",
    "version": 1
  }
}