Pith Number

pith:4Q5GVBWT

pith:2011:4Q5GVBWTY7OSW22UWK2KMWIBPA

not attested not anchored not stored refs pending

Fragile Binary Candidates in the SDSS DR8 spectroscopic archive

Gang Zhao, Jingkun Zhao, Terry D. Oswalt

arxiv:1111.2831 v1 · 2011-11-11 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Q5GVBWTY7OSW22UWK2KMWIBPA}

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	2026-05-18T01:59:40.024694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e43a6a86d3c7dd2b6b54b2b4a659017825a57822b8e2e403851c05f0c6be4b7b

Aliases

arxiv: 1111.2831 · arxiv_version: 1111.2831v1 · doi: 10.48550/arxiv.1111.2831 · pith_short_12: 4Q5GVBWTY7OS · pith_short_16: 4Q5GVBWTY7OSW22U · pith_short_8: 4Q5GVBWT

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/4Q5GVBWTY7OSW22UWK2KMWIBPA \
  | 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: e43a6a86d3c7dd2b6b54b2b4a659017825a57822b8e2e403851c05f0c6be4b7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132c3a1eff9bf7e832762d22add3460f39e147fc4d901a73812f2f86805f909a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-11T19:40:15Z",
    "title_canon_sha256": "4c66c9a13a802490683f599f3bdb94c095b259e582e49c001440cdc7d991e76e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2831",
    "kind": "arxiv",
    "version": 1
  }
}