Pith Number

pith:BMAYTGOG

pith:2016:BMAYTGOGNHRFVY2MZAMM43SHOY

not attested not anchored not stored refs pending

Polycomp: efficient and configurable compression of astronomical timelines

Maurizio Tomasi

arxiv:1604.07980 v1 · 2016-04-27 · 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{BMAYTGOGNHRFVY2MZAMM43SHOY}

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	2026-05-18T01:14:20.272800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b018999c669e25ae34cc818ce6e4776241f789b9805bb9c471f2b12d3f2b1ce

Aliases

arxiv: 1604.07980 · arxiv_version: 1604.07980v1 · doi: 10.48550/arxiv.1604.07980 · pith_short_12: BMAYTGOGNHRF · pith_short_16: BMAYTGOGNHRFVY2M · pith_short_8: BMAYTGOG

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/BMAYTGOGNHRFVY2MZAMM43SHOY \
  | 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: 0b018999c669e25ae34cc818ce6e4776241f789b9805bb9c471f2b12d3f2b1ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2df524a5a092784ca2b5474dfb2c3b3fffb0b66654194c42ac1df35229de228",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-04-27T08:53:01Z",
    "title_canon_sha256": "dd6c789d8050a0b0e678c38ca63b76bb13dfe47f8715bd6c024d3d0aa404d56e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07980",
    "kind": "arxiv",
    "version": 1
  }
}