Pith Number

pith:QI53ZEB5

pith:2010:QI53ZEB5PFOUOXKYPDGGDJGS46

not attested not anchored not stored refs pending

Beware of fake AGNs

G. Stasinska, N. Vale Asari, R. Cid Fernandes (for the SEAGal collaboration)

arxiv:1001.2520 v1 · 2010-01-14 · 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{QI53ZEB5PFOUOXKYPDGGDJGS46}

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	2026-05-18T02:09:51.933109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823bbc903d795d475d5878cc61a4d2e7a98befe349aa93dc86ba3302f78ac9ac

Aliases

arxiv: 1001.2520 · arxiv_version: 1001.2520v1 · doi: 10.48550/arxiv.1001.2520 · pith_short_12: QI53ZEB5PFOU · pith_short_16: QI53ZEB5PFOUOXKY · pith_short_8: QI53ZEB5

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/QI53ZEB5PFOUOXKYPDGGDJGS46 \
  | 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: 823bbc903d795d475d5878cc61a4d2e7a98befe349aa93dc86ba3302f78ac9ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43a370a98c5d9e9fb3eaeaed35ba0bb2389df9fee4aff0d26e0fb17169a508a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-14T18:09:52Z",
    "title_canon_sha256": "a1405c1d4c41f2c8da933106f0b777152f601382bc6c9567e0133dbbe0341a12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2520",
    "kind": "arxiv",
    "version": 1
  }
}