Pith Number

pith:DZOZPP7Q

pith:2017:DZOZPP7QJHT7MLNNTN5S3VWPIV

not attested not anchored not stored refs pending

Time-domain Studies of M31

Chien-Hsiu Lee (Subaru Telescope, NAOJ)

arxiv:1701.02507 v1 · 2017-01-10 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DZOZPP7QJHT7MLNNTN5S3VWPIV}

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	2026-05-18T00:53:04.094732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e5d97bff049e7f62dad9b7b2dd6cf4576856fd2a987694bdd96b66ebfe1f063

Aliases

arxiv: 1701.02507 · arxiv_version: 1701.02507v1 · doi: 10.48550/arxiv.1701.02507 · pith_short_12: DZOZPP7QJHT7 · pith_short_16: DZOZPP7QJHT7MLNN · pith_short_8: DZOZPP7Q

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/DZOZPP7QJHT7MLNNTN5S3VWPIV \
  | 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: 1e5d97bff049e7f62dad9b7b2dd6cf4576856fd2a987694bdd96b66ebfe1f063

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae8944fd7610856d98cbe5f5d03f2ce6e1baa1d7c560e462bef9a4c4be7ff9a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-10T10:30:13Z",
    "title_canon_sha256": "95e1968ca48becddea4b5c64b26a306e15d786ca3d1417e1d41ea3bf25c07afc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02507",
    "kind": "arxiv",
    "version": 1
  }
}