Pith Number

pith:UDNYCITP

pith:2015:UDNYCITPGGHH7VFTI2Y46VNPZE

not attested not anchored not stored refs pending

Demonstration of a Near-IR Laser Comb for Precision Radial Velocity Measurements in Astronomy

C. Beichman, E. Furlan, E. Martin, G. Doppmann, G. Vasisht, G. Ycas, J. Gagne, J. Sandhu, K. Vahala, M. Bottom, M. Fitzgerald, P. Chen, P. Gao, P. Plavchan, S.Diddams, S. Leifer, X. Yi

arxiv:1501.02509 v1 · 2015-01-11 · astro-ph.IM · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDNYCITPGGHH7VFTI2Y46VNPZE}

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	2026-05-18T01:12:50.006404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0db81226f318e7fd4b346b1cf55afc92322b0e267fcfca756cbe64a7fbf6f5a

Aliases

arxiv: 1501.02509 · arxiv_version: 1501.02509v1 · doi: 10.48550/arxiv.1501.02509 · pith_short_12: UDNYCITPGGHH · pith_short_16: UDNYCITPGGHH7VFT · pith_short_8: UDNYCITP

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/UDNYCITPGGHH7VFTI2Y46VNPZE \
  | 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: a0db81226f318e7fd4b346b1cf55afc92322b0e267fcfca756cbe64a7fbf6f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "926dd1a3df587db0bc3668293ac8674a5611a3290274fa2b3d75aac573025979",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-01-11T23:30:33Z",
    "title_canon_sha256": "b1006f7afb6d57f7838cc846bb188ee5fa14ae182836f400ebab1a2de63aa58c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02509",
    "kind": "arxiv",
    "version": 1
  }
}