Pith Number

pith:5YKI75NE

pith:2018:5YKI75NEWZWKFUIKPXL5NFILUM

not attested not anchored not stored refs pending

The SPectral Image Typer (SPIT)

J. Xavier Prochaska (UC Santa Cruz), Viktor Jankov

arxiv:1807.01761 v1 · 2018-07-04 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YKI75NEWZWKFUIKPXL5NFILUM}

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	2026-05-18T00:11:28.695261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee148ff5a4b66ca2d10a7dd7d6950ba335894c221482edb651a203198a3de33a

Aliases

arxiv: 1807.01761 · arxiv_version: 1807.01761v1 · doi: 10.48550/arxiv.1807.01761 · pith_short_12: 5YKI75NEWZWK · pith_short_16: 5YKI75NEWZWKFUIK · pith_short_8: 5YKI75NE

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/5YKI75NEWZWKFUIKPXL5NFILUM \
  | 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: ee148ff5a4b66ca2d10a7dd7d6950ba335894c221482edb651a203198a3de33a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b0e3648b62bbf2b1a1b7047f8d3d85978f9e3d0660053db9e05b979a9493b6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-04T20:03:09Z",
    "title_canon_sha256": "6b23c66dc1bbcde0671bfffa75350d85b3b185f10ff5ce19c6824790d6ae58be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01761",
    "kind": "arxiv",
    "version": 1
  }
}