Pith Number

pith:7X3RPSM4

pith:2012:7X3RPSM4JJFNRXTNO6UAISO4ZL

not attested not anchored not stored refs pending

Opening the 100-Year Window for Time Domain Astronomy

Edward Los, Jonathan Grindlay, Mathieu Servillat, Sumin Tang

arxiv:1211.1051 v1 · 2012-11-05 · astro-ph.IM · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7X3RPSM4JJFNRXTNO6UAISO4ZL}

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	2026-05-18T01:53:25.447184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdf717c99c4a4ad8de6d77a80449dccad8e0c9a282986ae07e09469df544b52f

Aliases

arxiv: 1211.1051 · arxiv_version: 1211.1051v1 · doi: 10.48550/arxiv.1211.1051 · pith_short_12: 7X3RPSM4JJFN · pith_short_16: 7X3RPSM4JJFNRXTN · pith_short_8: 7X3RPSM4

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/7X3RPSM4JJFNRXTNO6UAISO4ZL \
  | 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: fdf717c99c4a4ad8de6d77a80449dccad8e0c9a282986ae07e09469df544b52f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b85fc461b2e1c2bb55ba6ec007284b625567583cd005a7aefd6b09f743e1a3d4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-11-05T22:03:45Z",
    "title_canon_sha256": "30faac74a5681a7847ab9ff950becef89b31a3c8bf042fc42383709fe641cffb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1051",
    "kind": "arxiv",
    "version": 1
  }
}