Pith Number

pith:EHPXX7SC

pith:2009:EHPXX7SCUI554GQ6JGDWQGOBMY

not attested not anchored not stored refs pending

Perspective acceleration and gravitational redshift. Measuring masses of individual white dwarfs using Gaia + SIM astrometry

G. Anglada-Escude, J. H. Debes

arxiv:0907.3759 v1 · 2009-07-22 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHPXX7SCUI554GQ6JGDWQGOBMY}

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	2026-05-18T02:12:54.844557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21df7bfe42a23bde1a1e49876819c166183aca873ff77df5ce5fce0f233a2ba8

Aliases

arxiv: 0907.3759 · arxiv_version: 0907.3759v1 · doi: 10.48550/arxiv.0907.3759 · pith_short_12: EHPXX7SCUI55 · pith_short_16: EHPXX7SCUI554GQ6 · pith_short_8: EHPXX7SC

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/EHPXX7SCUI554GQ6JGDWQGOBMY \
  | 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: 21df7bfe42a23bde1a1e49876819c166183aca873ff77df5ce5fce0f233a2ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "536884220974a23aada9318a0d730361ce8ed20c399e217b5531200298af66c3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-07-22T00:05:09Z",
    "title_canon_sha256": "5834694d98a82fb33fe6d08d4ebb519404ec8bf87c24a04c023d16b672179889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3759",
    "kind": "arxiv",
    "version": 1
  }
}