Pith Number

pith:GRSMEKZI

pith:2013:GRSMEKZISSAMDYVH7BOFKMJNXF

not attested not anchored not stored refs pending

A fourth HI 21-cm absorption system in the sight-line of MG J0414+0534: a record for intervening absorbers

A. Tanna, C. Bignell, J. K. Webb, M. T. Whiting, S. J. Curran

arxiv:1306.0983 v1 · 2013-06-05 · 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{GRSMEKZISSAMDYVH7BOFKMJNXF}

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	2026-05-18T01:49:32.765067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3464c22b289480c1e2a7f85c55312db9549bede6911d4e48ef7e8612ebb5cd40

Aliases

arxiv: 1306.0983 · arxiv_version: 1306.0983v1 · doi: 10.48550/arxiv.1306.0983 · pith_short_12: GRSMEKZISSAM · pith_short_16: GRSMEKZISSAMDYVH · pith_short_8: GRSMEKZI

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/GRSMEKZISSAMDYVH7BOFKMJNXF \
  | 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: 3464c22b289480c1e2a7f85c55312db9549bede6911d4e48ef7e8612ebb5cd40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c11aa80d6f3785710b0912f4a5c46b95d4b796a6507fc3f853b7020e25e2d944",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-05T05:07:51Z",
    "title_canon_sha256": "5d33d6030b987a9cb2c6d7736e7d5dca3135e7015dee38411d5b829fd9924f3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0983",
    "kind": "arxiv",
    "version": 1
  }
}