Pith Number

pith:O7RB6XGG

pith:2016:O7RB6XGGKIDMRAOR7LJANA7JKR

not attested not anchored not stored refs pending

Survival of pure disk galaxies over the last 8 billion years

Kanak Saha, Sonali Sachdeva

arxiv:1602.08942 v1 · 2016-02-29 · astro-ph.GA · 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{O7RB6XGGKIDMRAOR7LJANA7JKR}

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	2026-05-18T01:18:06.479517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77e21f5cc65206c881d1fad20683e954634ae50319e4eadadf64e1172d23c055

Aliases

arxiv: 1602.08942 · arxiv_version: 1602.08942v1 · doi: 10.48550/arxiv.1602.08942 · pith_short_12: O7RB6XGGKIDM · pith_short_16: O7RB6XGGKIDMRAOR · pith_short_8: O7RB6XGG

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/O7RB6XGGKIDMRAOR7LJANA7JKR \
  | 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: 77e21f5cc65206c881d1fad20683e954634ae50319e4eadadf64e1172d23c055

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7acce533d55c3e9a6309485c357370ae8afb6c751a8ea939f5a58497bb50af1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-29T12:47:24Z",
    "title_canon_sha256": "6a891612adf7de45fa4d0ec7d42247890d1b079eb46409b44730e8149e5105a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08942",
    "kind": "arxiv",
    "version": 1
  }
}