Pith Number

pith:IRO7XUYK

pith:2012:IRO7XUYKM2BBXRF6LSS7PQBK7K

not attested not anchored not stored refs pending

The mystery of the missing GRB redshifts

Chadia Kanaan, Dafne Guetta, David Coward, Eric Howell, Marica Branchesi

arxiv:1206.5558 v1 · 2012-06-25 · 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{IRO7XUYKM2BBXRF6LSS7PQBK7K}

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	2026-05-18T03:52:39.721483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

445dfbd30a66821bc4be5ca5f7c02afab9b5a1cdb0e94fea8d7df8dfbf52b408

Aliases

arxiv: 1206.5558 · arxiv_version: 1206.5558v1 · doi: 10.48550/arxiv.1206.5558 · pith_short_12: IRO7XUYKM2BB · pith_short_16: IRO7XUYKM2BBXRF6 · pith_short_8: IRO7XUYK

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/IRO7XUYKM2BBXRF6LSS7PQBK7K \
  | 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: 445dfbd30a66821bc4be5ca5f7c02afab9b5a1cdb0e94fea8d7df8dfbf52b408

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c364a931785848c4317284aef8c15b503fd6144292ad4e9f99d179758b942e26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-25T01:47:30Z",
    "title_canon_sha256": "152c41c1e6a95bf06aa0b2b80a099e3ed40008363982b6516147787dce5ec325"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5558",
    "kind": "arxiv",
    "version": 1
  }
}