Pith Number

pith:S2DXRQK6

pith:2017:S2DXRQK6NK42NCENZUZ5FLGFOB

not attested not anchored not stored refs pending

An Introduction to the Planck Mission

David L Clements

arxiv:1707.09220 v1 · 2017-07-28 · 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{S2DXRQK6NK42NCENZUZ5FLGFOB}

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	2026-05-18T00:35:08.944414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

968778c15e6ab9a6888dcd33d2acc57078a35109068b77e670939474101a1bc9

Aliases

arxiv: 1707.09220 · arxiv_version: 1707.09220v1 · doi: 10.48550/arxiv.1707.09220 · pith_short_12: S2DXRQK6NK42 · pith_short_16: S2DXRQK6NK42NCEN · pith_short_8: S2DXRQK6

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/S2DXRQK6NK42NCENZUZ5FLGFOB \
  | 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: 968778c15e6ab9a6888dcd33d2acc57078a35109068b77e670939474101a1bc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "948262d0517c8fa61fb4cb6fe2206f24e51fc05e5921eefb0e476a020efa55b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-07-28T13:22:21Z",
    "title_canon_sha256": "cd592c12e22eb29d03ccbf77550aea1726eb8f52b3517840d8a9e57fc569474c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09220",
    "kind": "arxiv",
    "version": 1
  }
}