Pith Number

pith:GQC6BQFR

pith:2012:GQC6BQFRM7ZBTO6UB5A3LLJBBX

not attested not anchored not stored refs pending

Observational limits on the gas mass of a z=4.9 galaxy

A. C. Edge (ICC, A. M. Swinbank (ICC, Durham), I. Smail (ICC, J. E. Geach (McGill), J. Richard (CRAL, K. E. K. Coppin (McGill), Lyon), R. A. Crain (Leiden), R. C. Livermore (ICC, R. G. Bower (ICC

arxiv:1210.0899 v1 · 2012-10-02 · 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{GQC6BQFRM7ZBTO6UB5A3LLJBBX}

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	2026-05-18T01:54:11.408764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3405e0c0b167f219bbd40f41b5ad210dce27bd826318dc894584d20b7b2da623

Aliases

arxiv: 1210.0899 · arxiv_version: 1210.0899v1 · doi: 10.48550/arxiv.1210.0899 · pith_short_12: GQC6BQFRM7ZB · pith_short_16: GQC6BQFRM7ZBTO6U · pith_short_8: GQC6BQFR

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/GQC6BQFRM7ZBTO6UB5A3LLJBBX \
  | 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: 3405e0c0b167f219bbd40f41b5ad210dce27bd826318dc894584d20b7b2da623

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e692c8c7e740be87b401ce5b9f04ee4ad9936a8eac264bd8ce4cfab2d59ca25c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-02T20:00:00Z",
    "title_canon_sha256": "0210896b369c1f721a8786744d2c680e1a5412b59d2216046812a662f8f211da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0899",
    "kind": "arxiv",
    "version": 1
  }
}