Pith Number

pith:7W55NN54

pith:2015:7W55NN54GXOVSTTOHR44ZTFQHG

not attested not anchored not stored refs pending

Digital Sky Surveys from the ground: Status and Perspectives

T. Shanks

arxiv:1507.07694 v2 · 2015-07-28 · 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{7W55NN54GXOVSTTOHR44ZTFQHG}

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	2026-05-18T01:11:46.771084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdbbd6b7bc35dd594e6e3c79ccccb039bf6b24f19a3ebc41010d003058f29d56

Aliases

arxiv: 1507.07694 · arxiv_version: 1507.07694v2 · doi: 10.48550/arxiv.1507.07694 · pith_short_12: 7W55NN54GXOV · pith_short_16: 7W55NN54GXOVSTTO · pith_short_8: 7W55NN54

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/7W55NN54GXOVSTTOHR44ZTFQHG \
  | 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: fdbbd6b7bc35dd594e6e3c79ccccb039bf6b24f19a3ebc41010d003058f29d56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "661f7b0a455f57a4d9b4b0d0cddac38347a5d881b35c6c809d696a08ae7ce5c7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-28T09:26:23Z",
    "title_canon_sha256": "d15ae2342058d362833e487dc55105a3ebffa56e94d722e0ed44aad81610468b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07694",
    "kind": "arxiv",
    "version": 2
  }
}