Pith Number

pith:B2T5U2SX

pith:2017:B2T5U2SXC72ZYXTGMGWFBBFXZC

not attested not anchored not stored refs pending

Hybrid SGP4 orbit propagator

Eliseo P. Vergara, Iv\'an P\'erez, Juan F\'elix San-Juan, Montserrat San-Mart\'in

arxiv:1703.03569 v2 · 2017-03-10 · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2T5U2SXC72ZYXTGMGWFBBFXZC}

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	2026-05-18T00:44:57.168480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ea7da6a5717f59c5e6661ac5084b7c8affef425b040d08edd4cf52012f309d4

Aliases

arxiv: 1703.03569 · arxiv_version: 1703.03569v2 · doi: 10.48550/arxiv.1703.03569 · pith_short_12: B2T5U2SXC72Z · pith_short_16: B2T5U2SXC72ZYXTG · pith_short_8: B2T5U2SX

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/B2T5U2SXC72ZYXTGMGWFBBFXZC \
  | 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: 0ea7da6a5717f59c5e6661ac5084b7c8affef425b040d08edd4cf52012f309d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fa938fba3d6e2fa583c30e25cdb682f63065a1924f2f99e81bee45439267dda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2017-03-10T07:57:00Z",
    "title_canon_sha256": "0b8b5d9fce3ce96c90b6344140c79dc542b152f5b2327f7a248fe53d08c63166"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03569",
    "kind": "arxiv",
    "version": 2
  }
}