Pith Number

pith:4JE3WG7C

pith:2019:4JE3WG7CB4NUPKEVCQSFTT3PFX

not attested not anchored not stored refs pending

Time-resolved image polarimetry of Trappist-1 during planetary transits

E. Pall\'e, M. R. Zapatero Osorio, P. A. Miles-P\'aez, S. A. Metchev

arxiv:1901.02041 v1 · 2019-01-07 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JE3WG7CB4NUPKEVCQSFTT3PFX}

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	2026-05-17T23:56:16.190683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e249bb1be20f1b47a895142459cf6f2df119034d26f233bc89d82859803e7129

Aliases

arxiv: 1901.02041 · arxiv_version: 1901.02041v1 · doi: 10.48550/arxiv.1901.02041 · pith_short_12: 4JE3WG7CB4NU · pith_short_16: 4JE3WG7CB4NUPKEV · pith_short_8: 4JE3WG7C

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/4JE3WG7CB4NUPKEVCQSFTT3PFX \
  | 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: e249bb1be20f1b47a895142459cf6f2df119034d26f233bc89d82859803e7129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2be2f4303aef12b1f30e6240ead8474c77797024bf24ab5d76dfdbc7d4bb2ae2",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-07T19:57:25Z",
    "title_canon_sha256": "eaec89a2179bf730c990bd48abf8b6cda2a1d79853bad595a687394875b10a90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02041",
    "kind": "arxiv",
    "version": 1
  }
}