Pith Number

pith:J3W4RWZQ

pith:2015:J3W4RWZQL2CUI7TUYSYNLC3TQ5

not attested not anchored not stored refs pending

Galactic Archeology - requirements on survey spectrographs

Sofia Feltzing

arxiv:1506.08642 v1 · 2015-06-29 · astro-ph.IM · 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{J3W4RWZQL2CUI7TUYSYNLC3TQ5}

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	2026-05-18T01:37:43.736636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4eedc8db305e85447e74c4b0d58b73876fe43b643f87399b9d68ce61217dbdb4

Aliases

arxiv: 1506.08642 · arxiv_version: 1506.08642v1 · doi: 10.48550/arxiv.1506.08642 · pith_short_12: J3W4RWZQL2CU · pith_short_16: J3W4RWZQL2CUI7TU · pith_short_8: J3W4RWZQ

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/J3W4RWZQL2CUI7TUYSYNLC3TQ5 \
  | 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: 4eedc8db305e85447e74c4b0d58b73876fe43b643f87399b9d68ce61217dbdb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354000e73bd60b2bb1a2623be576b996f4b44269c6beb87359c105268c174ac5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-06-29T14:19:58Z",
    "title_canon_sha256": "f876ae79fac3e0c5b7fb18343fce5bbf77d3650525514e77adfb89a73b0f640a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08642",
    "kind": "arxiv",
    "version": 1
  }
}