The name Cinthia in Hebrew letters is סינתיה. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
סינתיה
In short
Your name in Hebrew letters is סינתיה. This name comes from the Greek language: the word Kynthos means “Mount Kynthos on the island of Delos”. The goddess Artemis was called “Kynthia”; this spelling is common in Latin America. In Hebrew it is written by sound. Adding up the numbers of its letters gives 535 — the same as the Torah word כהנתכם, “your priesthood”. That number points to Torah page 181 of 354 — in the portion Shmini. What that portion is about: The eighth day: Aaron's first service; fire from heaven; the death of Nadab and Abihu; clean and unclean animals. The verse that begins with the first letter of your name and ends with the last is Numbers 14:19. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Cinthia” — this exact spelling is what was calculated: סינתיה. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
Adding up the letters of the name סינתיה gives 535.
535
The number 535 is the Torah word כהנתכם — «your priesthood» (Numbers 18:1).
And the breast of waving and the thigh of heaving shall ye eat in a clean place; thou, and thy sons, and thy daughters with thee; for they are given as thy due, and thy sons' due, out of the sacrifices of the peace-offerings of the children of Israel.
This is from the portion Shmini. What it is about: The eighth day: Aaron's first service; fire from heaven; the death of Nadab and Abihu; clean and unclean animals.
Other ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 535. A Torah word with the same number is כהנתכם — “your priesthood” (Numbers 18:1).
Reduced, each letter to one digit (mispar katan) — 22. A Torah word with the same number is יחד — “together” (Genesis 13:6).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 76. A Torah word with the same number is עבד — “servant” (Genesis 9:25).
Cumulative: a letter plus all letters before it (mispar kidmi) — 2070.
Squares of the letter values (mispar perati) — 166325.
Building: the sum grows with each letter (mispar bone’eh) — 1835.
The letters that come out are חמטאמצ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 188. A Torah word with the same number is פקח — “to open” (Genesis 3:5).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 678. A Torah word with the same number is מרכבתיו — “his chariots” (Exodus 14:25).
The number 535 appears in the classical books 1 time across 1 work. The earliest mention is ציצים ופרחים (יעב"ץ) (~1750).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 535. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. סינתיה has 6 letters: ס Samekh, י Yod, נ Nun, ת Tav, י Yod, ה He. The first letter is Samekh, the last is He.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name סינתיה does not stand as a word in the Pentateuch — as with most names, including many Tanakh names from the later books.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For סינתיה these are ס and ה. The Pentateuch has exactly one such verse — Numbers 14:19:
סלח נא לעון העם הזה כגדל חסדך וכאשר נשאתה לעם הזה ממצרים ועד הנה
This is from the portion Shlach. What it is about: The twelve spies; forty years for forty days; challah and tzitzit.
The name סינתיה has no such day. The numbers of the dates in a year cover 326 values out of 940, and 535 is not among them. Half of all names are like this — neither good nor bad, just a fact of counting.
Add a date of birth and the verse of meeting from that week's portion is added to the reading.
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.