Pith Number

pith:HAH5LFCL

pith:2011:HAH5LFCL5MEK5DK7QNQ5B53BA6

not attested not anchored not stored refs pending

Differential photometry of delta Scorpii during 2011 periastron

Costantino Sigismondi

arxiv:1112.2356 v1 · 2011-12-11 · astro-ph.SR · 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{HAH5LFCL5MEK5DK7QNQ5B53BA6}

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	2026-05-18T04:06:34.688360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380fd5944beb08ae8d5f8361d0f761079f18d3e1b645cc815906f66631377717

Aliases

arxiv: 1112.2356 · arxiv_version: 1112.2356v1 · doi: 10.48550/arxiv.1112.2356 · pith_short_12: HAH5LFCL5MEK · pith_short_16: HAH5LFCL5MEK5DK7 · pith_short_8: HAH5LFCL

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/HAH5LFCL5MEK5DK7QNQ5B53BA6 \
  | 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: 380fd5944beb08ae8d5f8361d0f761079f18d3e1b645cc815906f66631377717

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d9c85ae4c2dabed2ff16089cdc518fb4a2d86f7ee2f48a0585c2a441baf2bb0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-11T14:08:52Z",
    "title_canon_sha256": "0de9a21d55f4693c4142828401af437a35433ac8c47155c38850ba50d46c56a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2356",
    "kind": "arxiv",
    "version": 1
  }
}